Patent US4295222A successfully refreshed from Google Patents.
US2385128A
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Nitration process
Assignee: EIDP Inc
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Filing: 1943-06-10
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Granted: 1945-09-18
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Expires: 1963-06-10
Abstract
No abstract record available.
Inventors
- 👤 James B Castner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:53
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/19; B01F27/192; B01F27/80; B01F27/86; B01F27/861; B01F27/91; B01J; B01J14/00; B01J19/00; B01J19/18; B01J19/1868; B01J19/1875; C; C07; C07B; C07B43/00; C07B43/02; C07C; C07C201/00; C07C201/06; C07C201/08; B01F27/15
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) | 1948-09-17 | 1949-03-19 | 1949-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-17 | 1953-03-19 | 1953-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-17 | 1957-03-19 | 1957-09-18 | $7700.00 | Window Closed / Lapsed |