IP Library Granted Patent US 4,091,447
Granted Patent Utility
US 4,091,447 · App. 05/706,673

Interrupt control system for a microcomputer

Inventors: Ronald D. Dillon, John F. Fisher
Patented Case View Patent ↗
Granted: May 23, 1978 Filed: Jul 19, 1976
Inventors
Ronald D. Dillon
John F. Fisher
Assignee (at issue)
Union Carbide 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 4,091,447
App. No.
05/706,673
Filed
1976-07-19
Granted
1978-05-23
Kind
A