US2729962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid circulating apparatus
Assignee: William E Cary Ltd
•
Filing: 1951-07-12
•
Granted: 1956-01-10
•
Expires: 1971-07-12
Abstract
No abstract record available.
Inventors
- 👤 Hicklin William Osborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
D; D06; D06F; D06F7/00; D06F7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1926446A
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US1943175A
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US2178198A
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US2148646A
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US2140315A
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US2346366A
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US2644677A
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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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |