U.S. patent number D315,736 [Application Number 07/028,159] was granted by the patent office on 1991-03-26 for combined speaker and amplifier. Invention is credited to Tsuyoshi Takagi.
United States Patent | D315,736 |
Takagi | March 26, 1991 |
Inventors: | Takagi; Tsuyoshi (Aza Shimokuruba, Kounoike, Itami-Shi, Hyogo-ken, JP) |
---|---|
Appl. No.: | 07/028,159 |
Filed: | March 18, 1987 |
Nov 19, 1986 [JP] | 61-45762 | |||
Current U.S. Class: | D14/194; D14/172 |
Field of Search: | ;D14/204-216,219-224,172,185,162,188,194,195 ;312/7.1 ;381/24,86-88,90,159,182,186,205 ;181/144,148,152,153,155,157,198,199 |
D215160 | September 1969 | Warren et al. |
D217355 | April 1970 | Shaw et al. |
D239012 | March 1976 | Ross |
D240315 | June 1976 | Kimbell et al. |
3883195 | May 1975 | Walker |
Stereo Review, Jul. 1986, p. 126, top right-Nady wireless speaker. . High Fidelity, May 1982, p. 67, center-Shure 711 loudspeaker.. |
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.