U.S. patent number D281,813 [Application Number 06/460,978] was granted by the patent office on 1985-12-17 for dental composite unit dose container with breakaway mixing stick. This patent grant is currently assigned to Johnson & Johnson Dental Products Company. Invention is credited to William J. Blatherwick, Leslie Hamilton, Robert D. Holewinski.
United States Patent | D281,813 |
Holewinski , et al. | December 17, 1985 |
Inventors: | Holewinski; Robert D. (Lakehurst, NJ), Hamilton; Leslie (Trenton, NJ), Blatherwick; William J. (Hamilton Square, NJ) |
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Assignee: | Johnson & Johnson Dental
Products Company (East Windsor, NJ) |
Appl. No.: | 06/460,978 |
Filed: | January 26, 1983 |
Current U.S. Class: | D24/221; D24/226 |
Field of Search: | ;D24/8,10,16,17,31,63,99 ;D9/341,344,337,338,347,424,425 ;206/219,568,570,572,229,530,528,531,532,538,539,438,635,363,368,828,557,561,564 |
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3618751 | November 1971 | Rich |
3835834 | September 1974 | Brown et al. |
3917062 | November 1975 | Winters |
3963120 | June 1976 | Perfect |
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