Patent US2650713A successfully refreshed from Google Patents.
US2650713A
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Tensioning apparatus
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1950-03-01
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Granted: 1953-09-01
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Expires: 1970-03-01
Abstract
No abstract record available.
Inventors
- 👤 George W Nigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:18
CPC Classifications
B; B01; B01D; B01D35/00; B01D33/00; B01D33/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1023972A
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GB191220657A
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US1206019A
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US1855641A
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US2145933A
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US2180354A
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US2240814A
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US2300166A
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US2443986A
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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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |