US2859529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging device
Assignee: Sheffield Corp
•
Filing: 1953-11-02
•
Granted: 1958-11-11
•
Expires: 1973-11-02
Abstract
No abstract record available.
Inventors
- 👤 Aller Willis Fay
- 👤 Elwood L Byrkett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:13
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/14; G01B5/146; G01B13/00; G01B13/08; G01B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1652435A
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US2372427A
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GB565881A
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US2433421A
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US2427924A
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US2407490A
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US2490376A
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US2675621A
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US2623293A
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US2686370A
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US2675622A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |