US2123732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst composition and method of making same
Assignee: Baker and Co Inc
•
Filing: 1936-06-02
•
Granted: 1938-07-12
•
Expires: 1956-06-02
Abstract
No abstract record available.
Inventors
- 👤 Christian W Keitel
- 👤 Thomas J Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:37
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/0215; B01J37/0232; B01J23/00; B01J23/38; B01J23/40; B01J37/0201; B01J37/0207
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) | 1941-07-11 | 1942-01-10 | 1942-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-11 | 1946-01-10 | 1946-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-11 | 1950-01-10 | 1950-07-12 | $7700.00 | Window Closed / Lapsed |