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...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.

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Class 213/1R - MISCELLANEOUS


Subclass of Class 213 - Railway draft appliances
Definition: Devices not falling specifically within the definitions
No. of applications: 1
Last issue date: 04/07/2011


Application No.Application TitleIssue Date
20110079167Highway vehicle towing system
A highway vehicle towing system includes a light railroad track embedded in a highway and capable of transmitting electricity from a power supply plant, and a towing tractor movable along the light railroad track to tow a car. The owing tractor has multiple pairs of met...
04/07/2011
 
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