US2647346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder gauge
Assignee: THOMAS P SLATTERY
•
Filing: 1950-10-12
•
Granted: 1953-08-04
•
Expires: 1970-10-12
Abstract
No abstract record available.
Inventors
- 👤 Prentice H Conradson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:52
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/02; B24B49/04; B24B49/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1877505A
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US1872667A
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US2050261A
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US2206732A
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US2212511A
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US2326339A
Cited
US2394475A
Cited
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 |