US2409376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for controlling the cooling of convective fluid streams
Assignee: Universal Oil Products Co
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Filing: 1942-06-08
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Granted: 1946-10-15
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Expires: 1962-06-08
Abstract
No abstract record available.
Inventors
- 👤 Lev A Mekler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:43
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0013; B01D; B01D51/00; B01D51/10; B01J8/00; B01J8/02; B01J8/0285; F; F28; F28C; F28C3/00; F28C3/06; F28C3/08; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00327; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00058; B01J2219/00063; B01J2219/00121; B01J2219/00123; B01J2219/00126; B01J2219/00162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-10-14 | 1950-04-15 | 1950-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-14 | 1954-04-15 | 1954-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-14 | 1958-04-15 | 1958-10-15 | $7700.00 | Window Closed / Lapsed |