IP Library › Granted Patent US 4,639,619
Granted Patent Utility
US 4,639,619 · App. 06/799,887

Electronic sampler switch

Inventors: Gary Baldwin, Robert Hallgren, Thomas Hornak, Fred H. Ives
Patented Case View Patent ↗
Granted: Jan 27, 1987 Filed: Nov 20, 1985
Inventors
Gary Baldwin
Robert Hallgren
Thomas Hornak
Fred H. Ives
Assignee (at issue)
Hewlett-Packard Company, L.P.

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 4,639,619
App. No.
06/799,887
Filed
1985-11-20
Granted
1987-01-27
Kind
A