US3426095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for conducting a plurality of alkylation reactions within a single reactor
Assignee: Petro Tex Chemical Corp
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Filing: 1966-05-09
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Granted: 1969-02-04
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Paul L Passley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:54
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2455; B01J19/246; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00058; B01J2219/00063; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00103; B01J2219/00117; B01J2219/00159; B01J2219/00164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |