Carlson; Edwin S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Carlson; Edwin S..The latest application filed is for "low profile cone valve assembly".
- Carlson; Edwin S. - St. Charles MO
- Carlson; Edwin S. - Saint Charles MO
- Carlson; Edwin S. - Chicago IL
| Patent | Date |
|---|---|
| Low profile cone valve assembly Grant 4,431,162 - Carlson February 14, 1 | 1984-02-14 |
| Low profile tank car ball valve Grant 4,311,298 - Carlson January 19, 1 | 1982-01-19 |
| Top operated outlet valve with unitary closure guide and retainer Grant 4,264,053 - Carlson April 28, 1 | 1981-04-28 |
| Bottom operable tank car valve Grant 3,981,481 - Reedy , et al. September 21, 1 | 1976-09-21 |
| Safety Vent System For Tanks Grant 3,845,878 - Carlson November 5, 1 | 1974-11-05 |
| Internal Ball Valve Grant 3,661,355 - Rawstron , et al. May 9, 1 | 1972-05-09 |
| Railroad Tank Car Ball Valve Grant 3,591,131 - Carlson July 6, 1 | 1971-07-06 |
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.
| 