Patent US3669694A successfully refreshed from Google Patents.
US3669694A
Expired / Lapsed
US
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Percolator coffee basket and filter assembly
Assignee: Sunbeam Corp
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Filing: 1971-03-30
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Granted: 1972-06-13
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Expires: 1991-03-30
Abstract
Abstract A cylindrical unitary brewing basket and filter assembly for electric coffee percolators is formed with a plastic basket and a woven mesh filters. The top of the brewing basket is open, and the bottom of the basket has a number of ribs which extend outwardly from the center of the basket in a spoke-like fashion. A woven mesh filter is secured against the upper surface of the spoke-like ribs in the interior of the basket. Openings are formed in the upper portion of the side wall of the plastic basket to receive plastic frames which contain overflow openings. Woven mesh filter strips are secured across the inside surface of the overflow openings of each of the frames.
Inventors
- 👤 Robert R Nauheimer
- 👤 Farees Uddin Khaja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:40
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/053
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |