IP Library › Granted Patent US 4,504,840
Granted Patent Utility
US 4,504,840 · App. 06/479,614

Thermal printing with ink replenishment

Inventors: Julie F. Evans, Hugh T. Findlay, Stephen A. Popyach, Deh C. Tao
Patented Case View Patent ↗
Granted: Mar 12, 1985 Filed: Mar 28, 1983
Inventors
Julie F. Evans
Hugh T. Findlay
Stephen A. Popyach
Deh C. Tao
Assignee (at issue)
International Business Machines Corporation

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Quick Facts
Patent No.
US 4,504,840
App. No.
06/479,614
Filed
1983-03-28
Granted
1985-03-12
Kind
A