Patent US2471526A successfully refreshed from Google Patents.
US2471526A
Expired / Lapsed
US
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Dental hand piece
Assignee: Individual
•
Filing: 1946-08-21
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Granted: 1949-05-31
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Expires: 1966-08-21
Abstract
No abstract record available.
Inventors
- 👤 Hans E T Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |