US3531266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of synthetic methanol
Assignee: Chemical Construction Corp
•
Filing: 1968-01-31
•
Granted: 1970-09-29
•
Expires: 1988-01-31
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Chernoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:31
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/1516; C07C29/1518; C07C29/74; C07C29/76; C07C29/80; C07C29/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527154A
Cited
US2554264A
Cited
US2905731A
Cited
US2964551A
Cited
US2904575A
Cited
US3064029A
Cited
US3214352A
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 |