US2391981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering caffein
Assignee: General Foods Corp
•
Filing: 1943-01-12
•
Granted: 1946-01-01
•
Expires: 1963-01-12
Abstract
No abstract record available.
Inventors
- 👤 Roland E Kremers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/20; A23F5/206; C; C07; C07D; C07D473/00; C07D473/02; C07D473/04; C07D473/06; C07D473/12
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) | 1948-12-31 | 1949-07-02 | 1950-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-31 | 1953-07-02 | 1954-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-31 | 1957-07-02 | 1958-01-01 | $7700.00 | Window Closed / Lapsed |