US3448037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking with crystalline zeolite catalyst
Assignee: Texaco Inc
•
Filing: 1968-06-18
•
Granted: 1969-06-03
•
Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 Dorrance P Bunn Jr
- 👤 Henry B Jones
- 👤 Richard E Nagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:11
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3053753A
Cited
US3188184A
Cited
US3142543A
Cited
US3188185A
Cited
US3392110A
Cited
US3380911A
Cited
US3394075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |