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US1893492A
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Process and apparatus for catalytic gaseous reations
Assignee: EIDP Inc
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Filing: 1928-12-31
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Granted: 1933-01-10
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Expires: 1948-12-31
Abstract
No abstract record available.
Inventors
- 👤 John L Brill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:44
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/1516; B; B01; B01J; B01J8/00; B01J8/0005; B01J8/02; B01J8/0285; B01J8/04; B01J8/0496; C07C29/152; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00088; B01J2208/0053
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) | 1936-01-10 | 1936-07-11 | 1937-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-10 | 1940-07-11 | 1941-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-10 | 1944-07-11 | 1945-01-10 | $7700.00 | Window Closed / Lapsed |