Patent US3545261A successfully refreshed from Google Patents.
US3545261A
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US
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Clamping chuck and hardness tester provided with such chuck
Assignee: Maier and Co Fabrik fuer Spezialmaschinen
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Filing: 1966-10-11
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Granted: 1970-12-08
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Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 Josef Maleschew
- 👤 Karl Brutmann
- 👤 Fritz Gartner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:47
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/40; G01N3/42; G01N3/44; G01B; G01B3/00; G01B3/22; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17231; Y10T279/17239; Y10T279/17247
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |