U.S. patent number D290,499 [Application Number 06/675,646] was granted by the patent office on 1987-06-23 for ultrasonic humidifier. This patent grant is currently assigned to Douglas Products A Scott Fetzer Company. Invention is credited to James D. Griffis, Masayuki Morimoto.
United States Patent | D290,499 |
Griffis , et al. | June 23, 1987 |
Inventors: | Griffis; James D. (Norton, OH), Morimoto; Masayuki (Tokyo, JP) |
---|---|
Assignee: | Douglas Products A Scott Fetzer
Company (Twinsburg, OH) |
Appl. No.: | 06/675,646 |
Filed: | November 28, 1984 |
Oct 8, 1984 [JP] | 59-41924 | |||
Current U.S. Class: | D23/356 |
Field of Search: | ;D23/146-148 ;219/271-276,360,362 ;98/30 ;261/24,29,95,99,DIG.17,DIG.42,DIG.48,DIG.65 ;239/34,136 ;312/31,31.01-31.03 |
D258758 | March 1981 | Johnson |
D281101 | October 1985 | Tsuji |
2211407 | August 1940 | Christensen |
3253820 | May 1966 | Seil |
Sweets Catalogue File-1982-vol. 2, .sctn.15.3-Carrier Heat Pumps, #388Q, p. 2. . Electrical Merchandising Week, 6/5/1961, General Electric Air Purifier, p. 38.. |
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