Granted Patent
Utility
US 4,642,492 · App. 06/664,858
Multiple phase clock buffer module with non-saturated pull-up transistor to avoid hot electron effects
Inventors:
John Beck, Daniel W. Dobberpuhl
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Oct 25, 1984
Inventors
John Beck
Daniel W. Dobberpuhl
Assignee (at issue)
Digital Equipment 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.