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???
03/04/10 08:49
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 		 #173827 - Yep
Responding to: ???'s previous message
Bruce Revor said:
Patents have a limited lifetime after which anyone can use the idea. Surely the patent on the original can opener had run out by the time
"pop-top" cans came on the market.


That's right.
20 years, top, assuming you pay all the fees at the right time, otherwise it runs out quicker.

Steve

List of 31 messages in thread
TopicAuthorDate
I don't understand why Patents?            01/01/70 00:00      
   it would be the ultimate stupidity            01/01/70 00:00      
   Have you considered chronology?            01/01/70 00:00      
      Agents            01/01/70 00:00      
         Not obligatory            01/01/70 00:00      
            But you beg to have one...            01/01/70 00:00      
   The idea            01/01/70 00:00      
   Do you want to build a hearing aid?            01/01/70 00:00      
    The purpose of the patent ...            01/01/70 00:00      
      So what you are basically saying            01/01/70 00:00      
         No            01/01/70 00:00      
         That's not an *Invention*            01/01/70 00:00      
         Purpose of patent            01/01/70 00:00      
            patents are a complete quagmire to suck in the unwary            01/01/70 00:00      
               Never go to court to enforce a patent            01/01/70 00:00      
            Maybe not so much            01/01/70 00:00      
               Letters Patent            01/01/70 00:00      
   Source code in patents            01/01/70 00:00      
      In England            01/01/70 00:00      
   Beware of trivialising what you don't understand!            01/01/70 00:00      
   Think about it...            01/01/70 00:00      
      Now how does this work            01/01/70 00:00      
         can-openers            01/01/70 00:00      
         What often happens..            01/01/70 00:00      
            What happens in U.S.A.            01/01/70 00:00      
               What happens in the USA ?            01/01/70 00:00      
                  Yep            01/01/70 00:00      
                  I should make it clearer            01/01/70 00:00      
   Invention v Implementation            01/01/70 00:00      
      "Design Patents" - US-specific?            01/01/70 00:00      
         Similar in Germany...            01/01/70 00:00      

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