US2580342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging device
Assignee: Sheffield Corp
•
Filing: 1947-07-05
•
Granted: 1951-12-25
•
Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 Aller Willis Fay
- 👤 David H Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:53
CPC Classifications
G; G01; G01B; G01B5/00; Y; Y10; Y10S; Y10S209/00; Y10S209/921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310837A
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AT35153B
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US1275960A
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US1439469A
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US1544762A
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US1873315A
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US2091815A
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US2243649A
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US2487629A
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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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |