US2455812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractionation in presence of radiant energy
Assignee: ExxonMobil Oil Corp
•
Filing: 1945-06-30
•
Granted: 1948-12-07
•
Expires: 1965-06-30
Abstract
No abstract record available.
Inventors
- 👤 Carleton H Schlesman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
B; B01; B01D; B01D3/00; B01D1/00; B01D1/0011; B01D1/0017; Y; Y10; Y10S; Y10S159/00; Y10S159/26; Y10S203/00; Y10S203/11; Y10S204/00; Y10S204/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR517006A
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US1419008A
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US1768179A
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FR690342A
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US1881041A
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GB417501A
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US2153599A
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US2209798A
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US2224621A
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US2265762A
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US2343666A
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US2362889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |