IP Library › Granted Patent US 4,288,760
Granted Patent Utility
US 4,288,760 · App. 06/071,540

Strip line directional coupler

Inventors: Franz Beyer, Peter Schucht
Patented Case View Patent ↗
Granted: Sep 8, 1981 Filed: Aug 31, 1979
Inventors
Franz Beyer
Peter Schucht
Assignee (at issue)
Siemens Aktiengesellschaft

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 4,288,760
App. No.
06/071,540
Filed
1979-08-31
Granted
1981-09-08
Kind
A