Questions about the history of the patent system or the histories of specific patents.

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What does the title “Assigm” mean? Is it a typo? [duplicate]

In reference to the patent: US383746 In the drawing and description it refers to the item as a "Lubricator", but the title of the patent is shown as "Assigm".
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2answers
39 views

How can I determine the date of a patent sale?

My great grandmother Lizzie M. Adams sold her patent (number 680,106) to C. H. Munson in the early 1900s, I think. I have a newspaper article of the sale but no date.
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3answers
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Did the Soviets do patents?

I know Russians do patents now, but did the Soviets of the USSR do them? When did the patent system start in Russia?
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1answer
231 views

What is Patent #100? Are all numbers used?

Google has a patent service (if you don't already know). Here are some example URLs: http://www.google.com/patents/US1 http://www.google.com/patents/US99 http://www.google.com/patents/US101 ...
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1answer
888 views

Was there a landmark controversial software patent of a trivial idea before the “XOR flashing cursor” patent?

Currently the majority of bad press about trivial software patents is all centred around Apple and other smartphone industry players. A few years ago it was the Amazon "1-click" patent everybody was ...