IP Library › Granted Patent US 4,064,868
Granted Patent Utility
US 4,064,868 · App. 05/731,030

Solar heat collector

Inventor: Otto J. Nussbaum
Patented Case View Patent ↗
Granted: Dec 27, 1977 Filed: Oct 8, 1976
Inventor
Otto J. Nussbaum
Assignee (at issue)
Halstead Industries, 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 4,064,868
App. No.
05/731,030
Filed
1976-10-08
Granted
1977-12-27
Kind
A