US3397137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon reforming process and catalyst compositions therefor
Assignee: Union Carbide Corp
•
Filing: 1967-05-15
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Granted: 1968-08-13
•
Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Paul E Pickert
- 👤 Anthony P Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:36
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/082; B01J29/10; B01J29/12; B01J29/123; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3236762A
Cited
US2971903A
Cited
US2971904A
Cited
US3121754A
Cited
US3236903A
Cited
US3251902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |