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Patent US2154527A successfully refreshed from Google Patents.
US2154527A
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Carrying out catalytic reactions
Assignee: Standard IG Co
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Filing: 1935-12-28
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Granted: 1939-04-18
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Expires: 1955-12-28
Abstract
No abstract record available.
Inventors
- 👤 Pier Mathias
- 👤 Simon Walter
- 👤 Jacob Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:55
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J21/06; B01J21/08; C10G11/00; C10G11/02; C10G45/00; C10G45/02; C10G45/04; C10G47/12
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) | 1942-04-17 | 1942-10-17 | 1943-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-17 | 1946-10-17 | 1947-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-17 | 1950-10-17 | 1951-04-18 | $7700.00 | Window Closed / Lapsed |