US2416465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbons with boron fluoride hydrate
Assignee: Phillips Petroleum Co
•
Filing: 1943-11-16
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Granted: 1947-02-25
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Expires: 1963-11-16
Abstract
No abstract record available.
Inventors
- 👤 William N Axe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:44
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06; C10G29/12; C07; C07C; C07C9/00; C07C9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB292932A
Cited
US2099835A
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US2203470A
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FR840980A
Cited
US2257627A
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US2345095A
Cited
US2348637A
Cited
US2375675A
Cited
US2366736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-24 | 1950-08-26 | 1951-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-24 | 1954-08-26 | 1955-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-24 | 1958-08-26 | 1959-02-25 | $7700.00 | Window Closed / Lapsed |