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.