US2838462A
Expired / Lapsed
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Catalyst for carbon monoxide oxidation
Assignee: Individual
•
Filing: 1956-03-20
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Granted: 1958-06-10
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Expires: 1976-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert N Pease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:06
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; C01B3/58; C01B3/583; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/66; B01J23/68; B01J23/688; C10; C10K; C10K3/00; C10K3/02; C10K3/04; C01B2203/00; C01B2203/04; C01B2203/0435; C01B2203/044; C01B2203/0465; C01B2203/047
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |