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US2468581A
Expired / Lapsed
US
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Dial micrometer
Assignee: Individual
•
Filing: 1945-08-27
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Granted: 1949-04-26
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Expires: 1965-08-27
Abstract
No abstract record available.
Inventors
- 👤 Earl J Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:33
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US620337A
Cited
US1307816A
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US676637A
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US790665A
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US799533A
Cited
US1463321A
Cited
US1617005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |