Bowman; Harold M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bowman; Harold M..The latest application filed is for "manhole frame assembly".
- Bowman; Harold M. - Fairvew Park OH
- Bowman; Harold M. - Fairview Park OH
- Bowman; Harold M. - Cleveland OH
- Bowman; Harold M. - Bay Village OH
| Patent | Date |
|---|---|
| Manhole frame assembly Grant 6,007,270 - Bowman December 28, 1 | 1999-12-28 |
| Adjustable manhole cover support with shield Grant 5,628,152 - Bowman May 13, 1 | 1997-05-13 |
| Sturdy adjustable manhole cover support Grant RE34,550 - Bowman February 22, 1 | 1994-02-22 |
| Split-ring manhole cover support Grant 5,184,912 - Bowman , et al. February 9, 1 | 1993-02-09 |
| Adjustable manhole cover support with spanners Grant 5,143,478 - Bowman September 1, 1 | 1992-09-01 |
| Manhole cover support with topside flange and inclined seat Grant 5,051,022 - Bowman * September 24, 1 | 1991-09-24 |
| Manhole cover support with topside flange Grant 4,969,770 - Bowman November 13, 1 | 1990-11-13 |
| Manhole cover support having enhanced grip Grant 4,969,771 - Bowman November 13, 1 | 1990-11-13 |
| Manhole cover support resistant to water infiltration Grant 4,927,290 - Bowman May 22, 1 | 1990-05-22 |
| Manhole cover support with box flanging Grant 4,872,780 - Bowman October 10, 1 | 1989-10-10 |
| Sturdy adjustable manhole cover support Grant 4,867,601 - Bowman September 19, 1 | 1989-09-19 |
| Utility cover extension Grant 4,834,574 - Bowman May 30, 1 | 1989-05-30 |
| Ingot mold and method Grant 4,747,739 - Bowman , et al. May 31, 1 | 1988-05-31 |
| Ingot mold and method Grant 4,416,440 - Bowman , et al. November 22, 1 | 1983-11-22 |
| Manhole cover support Grant 4,281,944 - Bowman August 4, 1 | 1981-08-04 |
| Manhole construction Grant 4,203,686 - Bowman May 20, 1 | 1980-05-20 |
| Adjustable manhole cover support structure Grant 3,968,600 - Bowman July 13, 1 | 1976-07-13 |
| Paving Compositions And Methods Of Making Same Grant 3,855,167 - Bowman December 17, 1 | 1974-12-17 |
| Adjustable Manhole Cover Support Grant 3,773,428 - Bowman November 20, 1 | 1973-11-20 |
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.
| 