US2767477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging device
Assignee: Sheffield Corp
•
Filing: 1954-11-19
•
Granted: 1956-10-23
•
Expires: 1974-11-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Esken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:02
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/14; G01B5/146; G01B13/00; G01B13/12; Y; Y10; Y10S; Y10S33/00; Y10S33/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1550671A
Cited
US2665496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |