U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.

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Class 212/120 - Carrier sheave-operated


Subclass of Class 212 - Traversing hoists
Definition: Rope carriers which are placed in position by the coaction
No. of patents: 2
Last issue date: 08/01/1978


NumberTitleIssue Date
4103784Single line, traction driven running skyline system
A continuous, single line, traction driven cable transportation system, intended for logging applications but not limited thereto. The system is open, such that line can be added to it at any time, whether during rigging, or during operation. Thus, theore...
08/01/1978
3973680Devices for erecting a building from prefabricated sections
Apparatus for erecting a prefabricated section building having two masts centered on either side of its foundation, the sections transported to loading areas adjacent and between each mast and the foundation. Cables connect the masts and support two indep...
08/10/1976
 
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