IP Library › Granted Patent US 4,309,870
Granted Patent Utility
US 4,309,870 · App. 06/080,641

Lubricating system for a turbomachine including a method of operating same

Inventors: Neil A. Guest, James F. Krisner
Patented Case View Patent ↗
Granted: Jan 12, 1982 Filed: Oct 1, 1979
Inventors
Neil A. Guest
James F. Krisner
Assignee (at issue)
CARRIER 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 4,309,870
App. No.
06/080,641
Filed
1979-10-01
Granted
1982-01-12
Kind
A