US3472912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process employing hydrotreating and molecular sieve purification
Assignee: Texaco Inc
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Filing: 1966-09-22
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Granted: 1969-10-14
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Expires: 1986-09-22
Abstract
No abstract record available.
Inventors
- 👤 Robert E Quisenberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:24
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C7/00; C07C7/005; C07C7/148; C07C7/163; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/882; C07C2523/883; C07C2527/00; C07C2527/02; C07C2527/04; C07C2527/047; C07C2527/049
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) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |