US1908696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for methanol manufacture and method of producing same
Assignee: S Karpen and Bros
•
Filing: 1930-01-16
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Granted: 1933-05-16
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Expires: 1950-01-16
Abstract
No abstract record available.
Inventors
- 👤 Barnett F Dodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:32
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/80; C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/154; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S75/00; Y10S75/956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-05-15 | 1936-11-14 | 1937-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-15 | 1940-11-14 | 1941-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-15 | 1944-11-14 | 1945-05-16 | $7700.00 | Window Closed / Lapsed |