IP Library › Granted Patent US 4,613,858
Granted Patent Utility
US 4,613,858 · App. 06/546,682

Error isolator for bi-directional communications buses

Inventors: Dale D. Davidson, David Albert Dietz
Patented Case View Patent ↗
Granted: Sep 23, 1986 Filed: Oct 28, 1983
Inventors
Dale D. Davidson
David Albert Dietz
Assignee (at issue)
Sperry Corp.

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 4,613,858
App. No.
06/546,682
Filed
1983-10-28
Granted
1986-09-23
Kind
A