US3423829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth structure including means for chemically bonding diverse materials together
Assignee: Dentists Supply Company of New York
•
Filing: 1965-08-20
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Granted: 1969-01-28
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Expires: 1985-08-20
Abstract
No abstract record available.
Inventors
- 👤 Benjamin David Halpern
- 👤 John O Semmelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/08; A61C13/09; A61K; A61K6/00; A61K6/30; A61K6/80; A61K6/802; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2302375A
Cited
US2419084A
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US2380468A
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US2611958A
Cited
US3052583A
Cited
US3288893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |