US2490152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Still
Assignee: THERMAL LIQUIDS Inc
•
Filing: 1947-09-30
•
Granted: 1949-12-06
•
Expires: 1967-09-30
Abstract
No abstract record available.
Inventors
- 👤 Oaks Orion Ottis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:07
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/30; C; C02; C02F; C02F1/00; C02F1/02; Y; Y10; Y10S; Y10S203/00; Y10S203/11; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US845286A
Cited
US760440A
Cited
US1104948A
Cited
US1225118A
Cited
US1864349A
Cited
US2335012A
Cited
US2398068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |