US2647456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging device
Assignee: Sheffield Corp
•
Filing: 1949-02-26
•
Granted: 1953-08-04
•
Expires: 1969-02-26
Abstract
No abstract record available.
Inventors
- 👤 Aller Willis Fay
- 👤 Anthony J Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:11
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; Y; Y10; Y10S; Y10S33/00; Y10S33/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1113472A
Cited
US1604475A
Cited
US1652298A
Cited
US1868615A
Cited
US1850404A
Cited
US2054874A
Cited
US2331422A
Cited
US2373941A
Cited
US2345732A
Cited
US2404750A
Cited
US2515412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |