Patent US2746259A successfully refreshed from Google Patents.
US2746259A
Expired / Lapsed
US
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Air-conditioning and water-cooling apparatus
Assignee: BBC Brown Boveri AG Germany
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Filing: 1954-03-02
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Granted: 1956-05-22
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Expires: 1974-03-02
Abstract
No abstract record available.
Inventors
- 👤 Katzenberger Bernhard
- 👤 Cube Hans Ludwig Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:23
CPC Classifications
F; F25; F25B; F25B5/00; F24; F24F; F24F5/00; F24F5/0007; F24F5/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425265A
Cited
US1846190A
Cited
US1994698A
Cited
US2093839A
Cited
US2240373A
Cited
US2281626A
Cited
US2605621A
Cited
US2589384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |