US2684536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-aligning plug gauge
Assignee: Ancraft Products Co
•
Filing: 1951-03-22
•
Granted: 1954-07-27
•
Expires: 1971-03-22
Abstract
No abstract record available.
Inventors
- 👤 Carl W Ahmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:53
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/22; G01B3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US950221A
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US1169327A
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FR474074A
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CH80247A
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US1487834A
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US1514250A
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US1547137A
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US1571154A
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US1626176A
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US2377020A
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US2455347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |