IP Library › Granted Patent US 4,674,264
Granted Patent Utility
US 4,674,264 · App. 06/825,345

Screwcapping head with a hysteresis clutch

Inventors: Darwin L. Ellis, Kyle A. McKee
Patented Case View Patent ↗
Granted: Jun 23, 1987 Filed: Feb 3, 1986
Inventors
Darwin L. Ellis
Kyle A. McKee
Assignee (at issue)
Aluminum Company of America

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 4,674,264
App. No.
06/825,345
Filed
1986-02-03
Granted
1987-06-23
Kind
A