US3022792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for gas-freeing and cleaning tankers
Assignee: WARREN K PRICE
•
Filing: 1959-05-25
•
Granted: 1962-02-27
•
Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Charles M Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:38
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B08B9/0936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806740A
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US766365A
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US1613185A
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US1891592A
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US2153577A
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US2240364A
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US2596151A
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US2647639A
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US2933093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |