IP Library Granted Patent US 5,140,174
Granted Patent Utility
US 5,140,174 · App. 07/645,952

Symmetric edge true/complement buffer/inverter and method therefor

Inventors: Peter Meier, Ken DelGrande
Patented Case View Patent ↗
Granted: Aug 18, 1992 Filed: Jan 25, 1991
Inventors
Peter Meier
Ken DelGrande
Assignee (at issue)
Hewlett-Packard Company, L.P.

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 5,140,174
App. No.
07/645,952
Filed
1991-01-25
Granted
1992-08-18
Kind
A