US2581001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Taper gauge
Assignee: Bryant Grinder Corp
•
Filing: 1947-02-18
•
Granted: 1952-01-01
•
Expires: 1967-02-18
Abstract
No abstract record available.
Inventors
- 👤 Elton S Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:14
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/20; G01B5/204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US764203A
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GB557578A
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US2403898A
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US2359869A
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US2363077A
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US2449842A
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US2432384A
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US2443895A
Cited
US2393094A
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US2371451A
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US2435268A
Cited
US2427152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |