Patent US2984008A successfully refreshed from Google Patents.
US2984008A
Expired / Lapsed
US
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Air and water control for dental drill
Assignee: Individual
•
Filing: 1957-11-12
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Granted: 1961-05-16
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Weisberg Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390710A
Cited
US2587356A
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US2542833A
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US2742055A
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US2788577A
Cited
US2902762A
Cited
US2841745A
Cited
US2855672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |