Before investing into a regular national patents via PCT (in China, U.S. and other countries) I would like to test the commercial potential of my invention. To this end I might utilize U.S. provisional application in U.S., but there is no such thing in China.
- But can I
- file a (cheap, self written) U.S. provisional application,
- start openly selling my product, for less then a year (even in China?),
- file a regular national patent application in China, U.S. and elsewhere within 12 month period?
Or is my selling considered public disclosure preventing me from a later regular patent application in China despite me filing a provisional application?
- While I do plan to read the book "Patent Pending in 24 Hours" dating back to 2002-2004 - I'm aware that I will not turn a patent attorney based on that knowledge. I might formulate my provisional application either (a) too broad/general or (b) too specific (leaving out valid claims that a professional attorney would have added). What is the best approach here (in the light of future PCT national application in China and elsewhere)?