U.S. patent number D304,231 [Application Number 07/101,277] was granted by the patent office on 1989-10-24 for subgingival delivery tip for attachment to dental irrigation instruments. This patent grant is currently assigned to Teledyne Industries, Inc.. Invention is credited to Robert D. Stream.
United States Patent | D304,231 |
Stream | October 24, 1989 |
Inventors: | Stream; Robert D. (Fort Collins, CO) |
---|---|
Assignee: | Teledyne Industries, Inc. (Fort
Collins, CO) |
Appl. No.: | 07/101,277 |
Filed: | September 25, 1987 |
Current U.S. Class: | D24/112; D24/111 |
Field of Search: | ;D24/10,14-16 ;433/80-82,89 |
D237713 | November 1975 | Wiley |
D270000 | August 1983 | Kelter |
3393673 | July 1968 | Mattingly |
3425410 | February 1969 | Cammack |
4416628 | November 1983 | Cammack et al. |
4619612 | October 1986 | Weber |
William Dixon Dental Catalogue (1940), p. 136, Syringe Head No. 9725. . Philips Brochure (1985)-Tip.. |
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