IP Library › Granted Patent US 4,067,716
Granted Patent Utility
US 4,067,716 · App. 05/772,813

Growing medium containing combusted bark particles

Inventor: Robert W. Sterrett
Patented Case View Patent ↗
Granted: Jan 10, 1978 Filed: Feb 28, 1977
Inventor
Robert W. Sterrett
Assignee (at issue)
W. R. Grace & Co.

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Quick Facts
Patent No.
US 4,067,716
App. No.
05/772,813
Filed
1977-02-28
Granted
1978-01-10
Kind
A