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US3336857A Expired / Lapsed US ⏱️ 0.0 years remaining

Invertible drip coffee maker

Assignee: Corning Glass Works
•
Filing: 1965-05-27
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Granted: 1967-08-22
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Expires: 1985-05-27
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Abstract

No abstract record available.

Inventors

  • 👤 Ruediger W Knodt
  • 👤 Charles R Schrankel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 21:29
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/16

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 202 words
AN IMPROVED DRIP COFFEE MAKER FOR BOTH HEATING WATER AND BREWING COFFEE IN A COMPOSITE COFFEE MAKER ASSEMBLY WHICH COMPRISES, AN UPWARDLY-OPEN SERVING VESSEL, A DOWNWARDLY-OPEN WATER-HEARING VESSEL POSITIONED UPON SAID SERVING VESSEL, INTERFITTING COLLAR RING MEANS FORMED ON SAID HEATING VESSEL AND SAID SERVING VESSEL, ALIGNED HANDLE MEANS PROJECTING OUTWARDLY FROM SAID COLLAR RING MEANS, A BASKET ASSEMBLY FOR RETAINING GROUND COFFEE REMOVABLY SECURED TO THE COLLAR RING MEANS ON SAID HEATING VESSEL AND PROJECTING WITHIN SAID SERVING VESSEL, POURING LIP MEANS FORMED IN THE COLLAR RING ON SAID SERVING VESSEL; SAID BASKET ASSEMBLY COMPRISING A SPREADER PLATE REMOVABLY SECURED TO SAID COLLAR RING MEANS FORMED ON SAID HEATING VESSEL, AND A BASKET MEMBER REMOVABLY SECURED TO SAID SPREADER PLATE; A VENT TUBE FIXEDLY POSITIONED WITHIN AND EXTENDING THROUGH SAID SPREADER PLATE FOR VENTING SAID HEATING VESSEL, AND A SEPARATE TUBE FIXEDLY RETAINED BY AND PROJECTING THROUGH THE BOTTOM OF SAID BASKET MEMBER IN AXIAL ALIGNMENT AND COOPERATIVE ENGAGEMENT WITH SAID VENT TUBE TO PROVIDE AN EXTENSION THEREOF FOR VENTING COMMUNICATION BETWEEN SAID UPPER HEATING VESSEL AND SAID LOWER SERVING VESSEL SO AS TO FACILITATE THE FLOW OF WATER FROM SAID HEATING VESSEL AND THROUGH THE GROUND COFFEE WITHIN SAID BASKET.
Claim 2
Dependent Claim 202 words
AN IMPROVED DRIP COFFEE MAKER FOR BOTH HEATING WATER AND BREWING COFFEE IN A COMPOSITE COFFEE MAKER ASSEMBLY WHICH COMPRISES, AN UPWARDLY-OPEN SERVING VESSEL, A DOWNWARDLY-OPEN WATER-HEARING VESSEL POSITIONED UPON SAID SERVING VESSEL, INTERFITTING COLLAR RING MEANS FORMED ON SAID HEATING VESSEL AND SAID SERVING VESSEL, ALIGNED HANDLE MEANS PROJECTING OUTWARDLY FROM SAID COLLAR RING MEANS, A BASKET ASSEMBLY FOR RETAINING GROUND COFFEE REMOVABLY SECURED TO THE COLLAR RING MEANS ON SAID HEATING VESSEL AND PROJECTING WITHIN SAID SERVING VESSEL, POURING LIP MEANS FORMED IN THE COLLAR RING ON SAID SERVING VESSEL; SAID BASKET ASSEMBLY COMPRISING A SPREADER PLATE REMOVABLY SECURED TO SAID COLLAR RING MEANS FORMED ON SAID HEATING VESSEL, AND A BASKET MEMBER REMOVABLY SECURED TO SAID SPREADER PLATE; A VENT TUBE FIXEDLY POSITIONED WITHIN AND EXTENDING THROUGH SAID SPREADER PLATE FOR VENTING SAID HEATING VESSEL, AND A SEPARATE TUBE FIXEDLY RETAINED BY AND PROJECTING THROUGH THE BOTTOM OF SAID BASKET MEMBER IN AXIAL ALIGNMENT AND COOPERATIVE ENGAGEMENT WITH SAID VENT TUBE TO PROVIDE AN EXTENSION THEREOF FOR VENTING COMMUNICATION BETWEEN SAID UPPER HEATING VESSEL AND SAID LOWER SERVING VESSEL SO AS TO FACILITATE THE FLOW OF WATER FROM SAID HEATING VESSEL AND THROUGH THE GROUND COFFEE WITHIN SAID BASKET.

References Cited (Backward Citations)

US1083900A Cited
FR822044A Cited
US2263881A Cited
US2233528A Cited
US2245182A Cited
GB759903A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-08-21 1971-02-20 1971-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-08-21 1975-02-20 1975-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-08-21 1979-02-20 1979-08-22 $7700.00 Window Closed / Lapsed

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