Patent US2472881A successfully refreshed from Google Patents.
US2472881A
Expired / Lapsed
US
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Process of recovering caffeine
Assignee: General Foods Corp
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Filing: 1946-06-20
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Granted: 1949-06-14
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Expires: 1966-06-20
Abstract
No abstract record available.
Inventors
- 👤 Bender Charles Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/46; A23F5/48; A23F5/483; A23F5/20; A23F5/206; C; C07; C07D; C07D473/00; C07D473/02; C07D473/04; C07D473/06; C07D473/12; Y; Y10; Y10S; Y10S159/00; Y10S159/25
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) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |