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US2846871A
Expired / Lapsed
US
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Air gage apparatus
Assignee: Federal Products Corp
•
Filing: 1956-01-27
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Granted: 1958-08-12
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Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 John H Worthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:15
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/08; G01B13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1940921A
Cited
US2357569A
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US2523564A
Cited
US2539624A
Cited
US2513374A
Cited
GB699779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |