Patent US4695624A successfully refreshed from Google Patents.
US2500916A
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Method and apparatus for controlling vaporization
Assignee: Phillips Petroleum Co
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Filing: 1944-04-15
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Granted: 1950-03-14
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Expires: 1964-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas H Whaley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
C; C10; C10G; C10G5/00; B; B01; B01D; B01D1/00; B01D1/0082; B01D3/00; B01D3/42; B01D3/4211; C07; C07C; C07C7/00; C07C7/11; Y; Y10; Y10S; Y10S203/00; Y10S203/11; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3006; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1363487A
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US1463158A
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US1550116A
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US1649345A
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US1940803A
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US2073908A
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US1969888A
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US2086808A
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US2200261A
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US2297098A
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US2343317A
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US2389244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |