Patent US3251042A successfully refreshed from Google Patents.
US2478427A
Expired / Lapsed
US
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Micrometer caliper for round bores
Assignee: Individual
•
Filing: 1945-03-02
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Granted: 1949-08-09
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Schmid Freddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:43
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1579334A
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US1667809A
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US1571783A
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US1722834A
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US1760717A
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US2134372A
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US2356133A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |