US2480727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cooling
Assignee: KAISER Co Inc
•
Filing: 1945-08-29
•
Granted: 1949-08-30
•
Expires: 1965-08-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Greyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:42
CPC Classifications
C; C10; C10B; C10B39/00; C10B39/10; F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US779106A
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US1989662A
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US2024934A
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US2372599A
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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) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |