US2641450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transferring heat by a powdered thermophore in a state of dense phase fluidization
Assignee: Hydrocarbon Research Inc
•
Filing: 1946-10-19
•
Granted: 1953-06-09
•
Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Paul W Garbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:00
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/02; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; C; C01; C01B; C01B3/00; C01B3/02; C01B3/22; C01B3/32; C01B3/34; C01B3/36; F25; F25J; F25J5/00; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00088; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00256; B01J2208/00309; B01J2208/00477; B01J2208/00495; B01J2208/0053; F25J2210/00; F25J2210/40; Y; Y10; Y10S; Y10S62/00; Y10S62/902
Claims Analysis
Total Claims: 0
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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) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |