US3323441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee percolator
Assignee: PROCTOR SILEX CORP
•
Filing: 1965-10-22
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Granted: 1967-06-06
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Luther P Manship
- 👤 Charles R Turner
- 👤 Stephen W Zamiska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/053; Y; Y10; Y10T; Y10T403/00; Y10T403/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A COFFEE PERCOLATOR, A CONTAINER HAVING AN OPEN UPPER END, A FOUNTAIN TUBE ADAPTED TO BE REMOVABLY DISPOSED IN SAID CONTAINER, A PERFORATE COFFEE GROUNDS BASKET HAVING A CENTRAL UPSTANDING TUBE ADAPTED TO FIT OVER THE UPPER END OF SAID FOUNTAIN TUBE, A COIL SPRING HAVING AT LEAST ONE COIL OF LARGER OUTSIDE DIAMETER THAN THE INSIDE DIAMETER OF SAID UPSTANDING TUBE AND ARRANGED TO GRIP UPSTANDING TUBE WHEN INSERTED THEREIN, SAID SPRING HAVING AN AXIALLY DISPOSED ELONGATED LOOP AT ONE END THEREOF ARRANGED TO GRIP SAID FOUNTAIN TUBE, WHEREBY SAID BASKET AND SAID FOUNTAIN TUBE ARE RELEASABLY JOINED TOGETHER.
Claim 2
Dependent Claim
101 words
IN A COFFEE PERCOLATOR, A CONTAINER HAVING AN OPEN UPPER END, A FOUNTAIN TUBE ADAPTED TO BE REMOVABLY DISPOSED IN SAID CONTAINER, A PERFORATE COFFEE GROUNDS BASKET HAVING A CENTRAL UPSTANDING TUBE ADAPTED TO FIT OVER THE UPPER END OF SAID FOUNTAIN TUBE, A COIL SPRING HAVING AT LEAST ONE COIL OF LARGER OUTSIDE DIAMETER THAN THE INSIDE DIAMETER OF SAID UPSTANDING TUBE AND ARRANGED TO GRIP UPSTANDING TUBE WHEN INSERTED THEREIN, SAID SPRING HAVING AN AXIALLY DISPOSED ELONGATED LOOP AT ONE END THEREOF ARRANGED TO GRIP SAID FOUNTAIN TUBE, WHEREBY SAID BASKET AND SAID FOUNTAIN TUBE ARE RELEASABLY JOINED TOGETHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |