Patent US2365729A successfully refreshed from Google Patents.
US2365729A
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Activated carbon catalyst bodies and their preparation and use
Assignee: National Carbon Co Inc
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Filing: 1941-11-14
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Granted: 1944-12-26
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Expires: 1961-11-14
Abstract
No abstract record available.
Inventors
- 👤 Erwin A Schumacher
- 👤 George W Heise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:41
CPC Classifications
C; C01; C01G; C01G49/00; C01G49/14; B; B01; B01J; B01J27/00; B01J27/20; B01J27/22; C01G19/00; Y; Y10; Y10S; Y10S423/00; Y10S423/01; Y10S423/02
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) | 1947-12-26 | 1948-06-26 | 1948-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-26 | 1952-06-26 | 1952-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-26 | 1956-06-26 | 1956-12-26 | $7700.00 | Window Closed / Lapsed |