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US2696237A
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Assignee: Individual
•
Filing: 1950-01-13
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Granted: 1954-12-07
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Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Hartwell T Doughty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:21
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/06; B60C27/10; B60C27/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315131A
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US1115221A
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US1045533A
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US1147182A
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US1676453A
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US1942337A
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US2174345A
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US2290398A
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US2458522A
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US2466918A
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US2527939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |