Patent US2647347A successfully refreshed from Google Patents.
US2647347A
Expired / Lapsed
US
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Gauging apparatus for grinding machines and the like
Assignee: Individual
•
Filing: 1951-02-15
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Granted: 1953-08-04
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Expires: 1971-02-15
Abstract
No abstract record available.
Inventors
- 👤 Frank W Blanchette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:54
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/08; B; B24; B24B; B24B49/00
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) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |