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US2799934A
Expired / Lapsed
US
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Dental drill
Assignee: Bowen & Co Inc
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Filing: 1955-12-01
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Granted: 1957-07-23
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Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 George R Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:11
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283314A
Cited
AT163217B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |