US2642671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal gauge
Assignee: Cleveland Instrument Co
•
Filing: 1950-05-03
•
Granted: 1953-06-23
•
Expires: 1970-05-03
Abstract
No abstract record available.
Inventors
- 👤 Erwin W Graham
- 👤 Walter O Mintel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/08; B; B25; B25D; B25D5/00; B25D5/02; G01B7/00; G01B7/12; G01B7/13
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1583208A
Cited
US1810710A
Cited
US1619834A
Cited
US1816061A
Cited
US1888416A
Cited
US1928457A
Cited
US2122664A
Cited
US2268956A
Cited
US2159343A
Cited
US2235533A
Cited
US2216796A
Cited
US2241287A
Cited
US2397196A
Cited
US2439595A
Cited
US2574342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |