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US2437014A
Expired / Lapsed
US
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Dental and surgical hammer
Assignee: NAT ELECTRIC INSTR Co Inc
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Filing: 1944-08-19
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Granted: 1948-03-02
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Expires: 1964-08-19
Abstract
No abstract record available.
Inventors
- 👤 Walter A Arnesen
- 👤 Hertweck Bernhard
- 👤 Spencer W Doty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:50
CPC Classifications
A; A61; A61C; A61C3/00; A61C3/08; A61B; A61B90/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863909A
Cited
US1837067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |