Calandra, Jr.; Frank
Patent Applications and Registrations
Patent applications and USPTO patent grants for Calandra, Jr.; Frank.The latest application filed is for "square embossed roof and rib plate".
- Calandra, Jr.; Frank - Pittsburgh PA
- Calandra, Jr.; Frank - Johnstown PA
| Patent | Date |
|---|---|
| Square embossed roof and rib plate Grant 7,284,933 - Calandra, Jr. , et al. October 23, 2 | 2007-10-23 |
| Flange nut for mine roof bolt Grant 6,619,888 - Calandra, Jr. , et al. September 16, 2 | 2003-09-16 |
| Three-prong shell Grant 6,599,059 - Calandra, Jr. , et al. July 29, 2 | 2003-07-29 |
| Tensionable cable bolt with mixing assembly Grant 5,919,006 - Calandra, Jr. , et al. July 6, 1 | 1999-07-06 |
| Cable bolt head Grant 5,829,922 - Calandra, Jr. , et al. November 3, 1 | 1998-11-03 |
| Bearing plate Grant RE35,902 - Calandra, Jr. , et al. September 22, 1 | 1998-09-22 |
| Non-metallic reinforcing rod and method of use in supporting a rock formation Grant 5,314,268 - Calandra, Jr. , et al. May 24, 1 | 1994-05-24 |
| Method and apparatus for supporting a mine roof Grant 5,302,056 - Calandra, Jr. , et al. April 12, 1 | 1994-04-12 |
| Expansion assembly Grant 5,244,314 - Calandra, Jr. , et al. September 14, 1 | 1993-09-14 |
| Delay stopper for a mine roof anchor and method of manufacture thereof Grant 5,064,312 - Calandra, Jr. , et al. November 12, 1 | 1991-11-12 |
| Expansion assembly for mine roof bolts utilized in small diameter bore holes Grant 4,969,778 - Calandra, Jr. , et al. * November 13, 1 | 1990-11-13 |
| Mine roof support utilizing roof anchors having eye-bolt heads Grant 4,934,873 - Calandra, Jr. June 19, 1 | 1990-06-19 |
| Roof bolt system Grant 4,861,197 - Calandra, Jr. August 29, 1 | 1989-08-29 |
| Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation Grant 4,518,292 - Calandra, Jr. * May 21, 1 | 1985-05-21 |
| Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation Grant 4,516,885 - Calandra, Jr. * May 14, 1 | 1985-05-14 |
| Method for combining resin bonding and mechanical anchoring of a bolt in a rock formation Grant 4,419,805 - Calandra, Jr. December 13, 1 | 1983-12-13 |
| Method and apparatus for combining resin bonding and mechanical anchoring of a bolt in a rock formation Grant 4,413,930 - Calandra, Jr. November 8, 1 | 1983-11-08 |
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.
| 