IP Library › Granted Patent US 4,238,641
Granted Patent Utility
US 4,238,641 · App. 06/079,148

Composite epoxy glass-microsphere-dielectrics for electronic coaxial structures

Inventors: Peter J. Planting, Patricia A. Fritzen
Patented Case View Patent ↗
Granted: Dec 9, 1980 Filed: Sep 26, 1979
Inventors
Peter J. Planting
Patricia A. Fritzen
Assignee (at issue)
Bunker Ramo 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 4,238,641
App. No.
06/079,148
Filed
1979-09-26
Granted
1980-12-09
Kind
A