IP Library Granted Patent US 4,670,721
Granted Patent Utility
US 4,670,721 · App. 06/842,443

Relaxation oscillator integrated circuit having shortable zener diodes for adjusting discharge current

Inventors: Walter S. Gontowski, Jr., John G. Metro, Steven S. Yole
Patented Case View Patent ↗
Granted: Jun 2, 1987 Filed: Mar 21, 1986
Inventors
Walter S. Gontowski, Jr.
John G. Metro
Steven S. Yole
Assignee (at issue)
Cherry Semiconductor 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 4,670,721
App. No.
06/842,443
Filed
1986-03-21
Granted
1987-06-02
Kind
A