Patent US2729951A successfully refreshed from Google Patents.
US2729951A
Expired / Lapsed
US
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Condenser water cooling device
Assignee: Old Carco LLC
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Filing: 1952-09-20
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Granted: 1956-01-10
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Expires: 1972-09-20
Abstract
No abstract record available.
Inventors
- 👤 Paul W Wyckoff
- 👤 Richard L Brugler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:07
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F25B2339/00; F25B2339/04; F25B2339/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1884095A
Cited
US1872785A
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US1869534A
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US1885371A
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US1913742A
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US2166635A
Cited
US2184837A
Cited
US2292335A
Cited
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 |