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US2667190A
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Assignee: JOHN L KOHLER
•
Filing: 1951-10-31
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Granted: 1954-01-26
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Expires: 1971-10-31
Abstract
No abstract record available.
Inventors
- 👤 Delano Clarence Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:41
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1140330A
Cited
US1319179A
Cited
US849389A
Cited
US1168853A
Cited
US1566225A
Cited
US2267937A
Cited
US2237556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |