Pfefferkorn; Dietmar
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pfefferkorn; Dietmar.The latest application filed is for "adjusting means in particular for guide elements, and magnetic tape cassette possessing such means".
- Pfefferkorn; Dietmar - Hemsbach DE
| Patent | Date |
|---|---|
| Adjusting means in particular for guide elements, and magnetic tape cassette possessing such means Grant 4,709,288 - Schaeffer , et al. November 24, 1 | 1987-11-24 |
| Tape cassette containing echo-erasing means Grant 4,656,548 - Pfefferkorn , et al. April 7, 1 | 1987-04-07 |
| Tape cassette comprising a substantially rectangular two-part housing Grant 4,566,653 - Bettinger , et al. January 28, 1 | 1986-01-28 |
| Method and apparatus for measuring the electroacoustic properties of magnetic tapes Grant 4,251,882 - Pfefferkorn February 17, 1 | 1981-02-17 |
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.
| 