Ask Patents Weekly Newsletter
Ask Patents Weekly Newsletter

Top new questions this week:

Patent Number suffix A1 / B2 etc.

On some patent numbers I see an "A1" / "A2" / "B2" etc. suffix after the actual patent number e.g. "USxxxxxxxxx B2" or "WOxxxxxxxx A1" etc. What do these suffixes mean? Is there a key somewhere ...

[uspto] [number]  
asked by curious_cat 1 vote
answered by Maca 1 vote

US vs Indian Patent System differences

We may be filing for a patent in India, and while our attorneys will be doing the heavy lifting, I was just curious about what major differences there are in the patent system between there and the ...

[claims] [filing] [foreign] [india]  
asked by curious_cat 1 vote

Greatest hits from previous weeks:

Requesting prior art on Google machine learning patent (US 2014/0180986)

Google is attempting to patent well known concepts in the field of machine learning. Can anyone provide prior art for WO 2014/105866 A1 (US 2014/0180986), "System and method for addressing ...

[prior-art-request] [google] [wo2014105866a1] [us20140180986]  
asked by guest 4 votes
answered by vallismortis 2 votes

Searching for US Provisional Patents

US8261231 "claims benefit to U.S. Provisional Patent Application No. 61/472,609, which was filed on Apr. 6, 2011... The contents of the above-identified applications are incorporated by reference in ...

[search] [us8261231] [provisional]  
asked by CommonsWare 2 votes
answered by Epicentre 2 votes

What is the difference between a provisional and a non-provisional patent application?

The Detailed Description of this patent application begins with the sentence: This is a non-provisional application based upon U.S. provisional patent application Ser. No. 61/451,429, entitled ...

[patentability] [us20120228338]  
asked by kalpesh 2 votes
answered by Jay Smith-Hill 4 votes

How detailed should a provisional patent application be? (Software)

I am considering filing for a provisional patent which deals with mobile and web technologies. Now this is a method to do something. But how detailed do I go? Right now, I have something working in ...

[software] [filing] [provisional] [android] [provisional-application]  
asked by Ayrton Senna 3 votes
answered by Dennis Crouch 6 votes

What is a "Lapsed Patent" and which concepts (if any) may still be protected by this Patent?

US 6,148,942 "Infant stroller safely propelled by DC electronic motor" According to Google Patents, US 6,148,942 is Lapsed and according to Public PAIR its status is Expired as of 2008. Google ...

[expired-patent] [lapsed-patent] [reinstatement] [us6148942]  
asked by user5428 3 votes
answered by Paul Guyot 3 votes
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