US3565641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee brewing machine
Assignee: Individual
•
Filing: 1968-04-08
•
Granted: 1971-02-23
•
Expires: 1988-04-08
Abstract
Abstract AN APPARATUS FOR BREWING A SINGLE CUP OF BEVERAGE WHICH HAS A CHAMBER FOR RECEIVING HOT WATER AND BEVERAGE MATERIAL. THE CHAMBER HAS A FLOOR PERMEABLE TO GAS AND LIQUID AND IMPERMEABLE TO THE BEVERAGE MATERIAL. THE APPARATUS INCLUDES A SECOND CHAMBER LOCATED BELOW THE FIRST CHAMBER WITH A PISTON THEREIN. MOVEMENT OF THE PISTON TOWARD THE FLOOR OF THE FIRST CHAMBER FORCES AIR THROUGH THE FLOOR INTO THE FIRST CHAMBER TO AGITATE AND BREW THE HOT WATER AND BEVERAGE MATERIAL MIXTURE TO PRODUCE THE BEVERAGE. MOVEMENT OF THE PISTON AWAY FROM THE FLOOR WITHDRAWS THE BEVERAGE THROUGH THE FLOOR TO DISPENSE IT.
Inventors
- 👤 Alan M King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:13
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/24; A47J31/34; A47J31/36
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |