US2775117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic gauging device
Assignee: Sheffield Corp
•
Filing: 1952-10-15
•
Granted: 1956-12-25
•
Expires: 1972-10-15
Abstract
No abstract record available.
Inventors
- 👤 Aller Willis Fay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:11
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/18; G01B13/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2490376A
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FR961817A
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GB658754A
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US2572368A
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US2623294A
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US2712181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |