IP Library Granted Patent US 4,758,090
Granted Patent Utility
US 4,758,090 · App. 06/911,562

Optical wavelength monitor using blazed diffraction grating

Inventor: Richard F. Schuma
Patented Case View Patent ↗
Granted: Jul 19, 1988 Filed: Sep 25, 1986
Inventor
Richard F. Schuma
Assignee (at issue)
AlliedSignal, Inc.

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 4,758,090
App. No.
06/911,562
Filed
1986-09-25
Granted
1988-07-19
Kind
A