Patent US4207282A successfully refreshed from Google Patents.
US2486684A
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Distillation process using radiofrequency heating
Assignee: ExxonMobil Oil Corp
•
Filing: 1946-04-10
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Granted: 1949-11-01
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Expires: 1966-04-10
Abstract
No abstract record available.
Inventors
- 👤 Carleton H Schlesman
- 👤 Frank S Fawcett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:44
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0011; B01D1/0017; B01D3/00; B01D3/12; B01D3/34; B01D3/343; B01D3/346; Y; Y10; Y10S; Y10S159/00; Y10S159/26; Y10S159/42; Y10S203/00; Y10S203/11; Y10S204/00; Y10S204/90
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) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |