Patent Express Logo
Contact us
Toll-free: (877)-794-9511
Ask a question
Ask a question
See Questions and Answers
See Questions and Answers
Discover more services
Discover more services
Search for Patent Questions:
 

Abandoned patents

Posted by Anonymous . updated on 2/26/2009
Hi!

How can I search for abandoned patents using Assignee name on electronic databases [USPTO, Delphion and the like..].

Thanks in advance.

NV
Answers (18)
 
Wiscagent
NV asked ?How can I search for abandoned patents ??

Its not clear if you are asking about expired patents or abandoned patent applications; also I?m assuming that you are only concerned with US patents.  
If your interest is expired patents:
- i) search for patents that were granted before 1989; and
- ii) patents that were applied for after 1995 AND were issued before 2002.

All of the patent that were granted before 1989 have expired.
For the patents in group (ii) go to the USPTO ?Patent Maintenance Fees? page, https://ramps.uspto.gov/eram/patentMaintFees.do .  If the fees are up to date, then the patent has not yet expired.  This method will NOT identify patents that have been ruled invalid or unenforceable.

If your interest is abandoned patent applications, search for published applications, then look up their status on the ?Public PAIR? system at http://portal.uspto.gov/external/portal/pair .  Note that some patent applications go abandoned without ever having published.  Generally, the unpublished applications remain confidential.

Richard Tanzer
 
 
NV
In fact, I was looking for abandoned patents rather than expired ones.

Thank you for the info and the links.

NV
 
 
Wiscagent
What is an "abandoned patent"?
 
 
Isaac
Quote
What is an "abandoned patent"?


I'm guessing he means patents where the maintenance fees have not been paid.
 
 
JZ
Can I ask why 1995-2002 time frame is chosen to see the patent maintenance?

Thanks!
 
 
JimIvey
Quote
Can I ask why 1995-2002 time frame is chosen to see the patent maintenance?

I'll take a W.A.G. (Wild-A**-Guess):  2002 is the later limit because the first maintenance fee is due at 4 years from issue.  This is 2006; so, the most recently issued patents for which maintenance fees would be due would have issued in 2002.  1995 is probably as far back as digital records are readily available for that sort of information.

How'd I do?

Regards.
 
 
Wiscagent
Yes, Jim.  Any US patent granted after 2002 has not yet required payment of a maintenance fee.

The 1995 date was not correct.  I should have written 1989 ? 2002.  All patents granted before 1989 have already expired, so maintenance fees are irrelevant.

By the way, the US first required maintenance fees for patents granted after Dec.12, 1980.  

Here?s an interesting observation.  In the very unlikely event that a patent is granted with all claims based on a priority date of 16 years earlier, no maintenance fee would be required.  The patent would simply expire after four years.
 
 
JZ
Hi, Jim and Richard:

Thanks much for your quick response and detailed explantion.

Your input is very helpful.

Regards,
JZ
 
 
Rolf
Hi,

you can also obtain free patent families with legal status information from

www. ipnewsflash. com

to find out, where a certain idea is also protected.

Rolf
 
 
Rolf
Hi,

you can also obtain free patent families with legal status information from IP Newsflash

www. ipnewsflash. com

to find out, where a certain idea is also protected.

Rolf
 
Related Questions
In Patent Process    -  posted on 4/22/2009
I was reading an article about a discovery made by a professor. While reading it, I came up with an application of the discovery that could be very successful. What are the approaches that I can use to get m...   Read MoreAnswer this question
In Patent Process    -  posted on 4/12/2009
This is to clarify a question that I asked earlier. I was reading an article about an invention made by a professor. While reading it, I came up with an application of the invention that could be very succes...   Read MoreAnswer this question
In Patent Process    -  posted on 4/23/2009
re: patenting an application Given that a technology has become protected under patent, and other, law, can an application of that technology be patented by someone other than the owner of the original techn...   Read MoreAnswer this question
In Patent Process    -  posted on 2/1/2008
sir, i am a docter,i have done( bams),and now i want to make a helicopter;with the help of some part of motorbike,so is any law which can stop me to do particular work.and 2nd thing i am not using any one''s...   Read MoreAnswer this question
In Patent Process    -  posted on 4/24/2009
what forms do i need to file a patent   Read MoreAnswer this question
Previous question: 102(d) Question >>
Why Patent Express?
  • Patent Express is the fastest and easiest way for an individual inventor to file a U.S. Patent or Trademark Application.
  • Patent Express fills the gap for those who cannot afford a U.S. patent attorney or agent, but want to have their patent drafted and issued.
  • Patent Express is backed by a 100% money back guarantee.
Save 95% more in register a trademark
Patent Express Services
 

PatentExpress.com is a website of Raj Abhyanker, a professional U.S. Patent Law firm, see: www.rajpatent.com for more. All non-do-it-yourself related services advertised on this site are supervised and managed by a U.S. patent attorney.

© PatentExpress.com All rights reserved. Disclaimer: The information provided in this site is not legal advice, but general information on legal issues commonly encountered. Please note that your access to and use of PatentExpress.com is subject to additional terms and conditions. 09-16-2014