Patent US2436804A successfully refreshed from Google Patents.
US2436804A
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Process of recovering organic compounds
Assignee: Masonite Corp
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Filing: 1943-07-19
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Granted: 1948-03-02
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Expires: 1963-07-19
Abstract
No abstract record available.
Inventors
- 👤 Hill John Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:25
CPC Classifications
C; C07; C07C; C07C51/00; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/46; C07D307/48; C07D307/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR495116A
Cited
FR21602E
Cited
DE642246C
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US2033978A
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US1996706A
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US2078241A
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US2369655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |