US3435092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation utilizing fine dispersion of reactants in a constant catalyst mass
Assignee: Phillips Petroleum Co
•
Filing: 1966-08-24
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Granted: 1969-03-25
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Tom Hutson Jr
- 👤 Cecil O Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/922; Y10S585/923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2454869A
Cited
US2386681A
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US2720447A
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US2747003A
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US3212860A
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US3275565A
Cited
US3254137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |