US1845058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic gas reactions
Assignee: Standard IG Co
•
Filing: 1927-07-23
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Granted: 1932-02-16
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Expires: 1947-07-23
Abstract
No abstract record available.
Inventors
- 👤 Pier Mathias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/24; C10G47/30; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44; C07; C07C; C07C49/00; C07C49/76; C10G1/00; C10G1/06
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) | 1935-02-15 | 1935-08-17 | 1936-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-15 | 1939-08-17 | 1940-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-15 | 1943-08-17 | 1944-02-16 | $7700.00 | Window Closed / Lapsed |