Patent and Invention Help Forum

Patent and Inventing Discussion => Patent Questions and Advice => Topic started by: Arnold on April 11, 2019, 10:34:55 AM

Title: Confusion: Expiration date(s) of plumpynut food paste
Post by: Arnold on April 11, 2019, 10:34:55 AM
Hello together,

when i searched when the (highly controversial) patent for the plumpynut paste will expire i learned that for some place it is already expired, but there are several out there with different filling dates wich led to my confusion.


Here unter WO(/GB?) the filing date was 2005:

https://patents.google.com/patent/WO2005096837A2/en?q=plumpynut&oq=plumpynut

Questions:

1.)Is the Great Britain patent running till 2025?

2.) Why are here WO/DK/AP not listed as expired, are they not expired?

https://patents.google.com/patent/US6346284B1/en?oq=US+patent+6346284


3.) Is the WIPO/World Patent for plumpynut still running?

4.)Is there a better solution/website than google-patents, that will list all plumpynut patents and shows if/when they are expired?

Best wishes,

Arnold
Title: Re: Confusion: Expiration date(s) of plumpynut food paste
Post by: Brad on April 11, 2019, 09:25:26 PM
If I had to guess Google Patents is not able to properly calculate the expiration of patents outside of the US and even calculating a proper US expiration date can be challenging as some patents can have "patent term extension" added onto the end of their 20 year period.

One other website you may want to try is:  https://worldwide.espacenet.com/?locale=en_EP

Other than that the safest bet would be to figure out which countries you were most interested in and hiring a patent attorney in each country to research this for you (note each country has their own patent rules around expirations which is why Google is not always a reliable source)

Title: Re: Confusion: Expiration date(s) of plumpynut food paste
Post by: Arnold on April 13, 2019, 03:04:32 PM
Thank you very much Mister Fach for your answer.