US2444217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating coffee
Assignee: RICHARD B COFFMAN
•
Filing: 1944-08-12
•
Granted: 1948-06-29
•
Expires: 1964-08-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Armentrout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:16
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255965A
Cited
US2343228A
Cited
GB189824400A
Cited
GB190103129A
Cited
US1237931A
Cited
US1426011A
Cited
GB246454A
Cited
US1602576A
Cited
US1788705A
Cited
US2062109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |