U.S. patent number D301,687 [Application Number 06/805,102] was granted by the patent office on 1989-06-20 for mine roof support plate. Invention is credited to Bruce A. Cassidy, James O. Gray.
United States Patent | D301,687 |
Cassidy , et al. | June 20, 1989 |
Inventors: | Cassidy; Bruce A. (Richmond, OH), Gray; James O. (Rayland, OH) |
---|---|
Appl. No.: | 06/805,102 |
Filed: | November 13, 1985 |
Current U.S. Class: | D8/399; D8/353 |
Field of Search: | ;D8/350,353,399 ;405/259,261 ;411/531 ;52/512,690 |
D236428 | August 1975 | Stewart et al. |
2854824 | October 1958 | Curry et al. |
4095431 | June 1978 | Hannan |
4112693 | September 1978 | Collin et al. |
4371293 | February 1983 | Wilcox et al. |
4476660 | October 1984 | Francovitch |
4518282 | May 1985 | Wilcox et al. |
Brochure entitled: "Keeping the Roof Over Your Head", published by Keystone Bolt Company, Copyright 1979. . Brochure entitled: "Tazewell Underground Roof Control Products and Services", published by Tazewell Industries (undated).. |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.