US2664640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micrometer for measuring thin insulation
Assignee: Individual
•
Filing: 1951-04-17
•
Granted: 1954-01-05
•
Expires: 1971-04-17
Abstract
No abstract record available.
Inventors
- 👤 Maynard R Euverard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/06; G01B5/066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US335110A
Cited
US346705A
Cited
US373705A
Cited
US1311548A
Cited
DE182583C
Cited
US1327114A
Cited
US1961764A
Cited
US2290940A
Cited
US2544192A
Cited
US2545782A
Cited
US2603876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |