US3531267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing fuel gas and synthesis gas
Assignee: Chevron USA Inc
•
Filing: 1965-06-17
•
Granted: 1970-09-29
•
Expires: 1985-06-17
Abstract
No abstract record available.
Inventors
- 👤 George D Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:40
CPC Classifications
C; C10; C10G; C10G47/00; C10G11/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1904439A
Cited
US2707147A
Cited
US2654662A
Cited
US2711419A
Cited
US2759806A
Cited
US2795559A
Cited
US3178272A
Cited
US2942960A
Cited
US2911288A
Cited
US3025149A
Cited
US3074783A
Cited
US3103423A
Cited
US3119667A
Cited
US3351563A
Cited
US3338681A
Cited
US3458299A
Cited
US3363024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |