IP Library › Granted Patent US 4,701,836
Granted Patent Utility
US 4,701,836 · App. 07/009,209

Method and apparatus for controlling print quality of a thermal printer

Inventor: Frank J. Horlander
Patented Case View Patent ↗
Granted: Oct 20, 1987 Filed: Jan 30, 1987
Inventor
Frank J. Horlander
Assignee (at issue)
International Business Machines Corporation

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,701,836
App. No.
07/009,209
Filed
1987-01-30
Granted
1987-10-20
Kind
A