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US3209746A Expired / Lapsed US ⏱️ 0.0 years remaining

Kitchen pot having heat concentrating and insulating thermal bell

Assignee: Individual
•
Filing: 1963-12-17
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Granted: 1965-10-05
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Expires: 1983-12-17
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Abstract

No abstract record available.

Inventors

  • 👤 Giuseppe Fronza

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 23:06
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/06; A47J36/36; A47J36/38

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 164 words
A KITCHEN POT FOR COOKING FOODSTUFFS COMPRISING A CENTRAL OPEN-TOPPED RECEPTACLE, A THERMAL BELL AFFIXED TO SAID RECEPTACLE AT THE TOP OF SAID RECEPTACLE AND FLARING OUTWARDLY AND DOWNWARDLY FROM SAID AFFIXED POSITION TO FORM A CHAMBER ENTRAPPING HEATED AIR ABOUT SAID RECEPTACLE, A LID REMOVABLY COVERING SAID OPEN END OF SAID RECEPTACLE, SAID LID HAVING A FIRST CHAMBER AND A SECOND CHAMBER, SAID FIRST CHAMBER BEING FILLED WITH INSULATION AND POSITIONED IN CONTACT WITH SAID RECEPTABLE, SAID SECOND CHAMBER BEING POSITIONED ON TOP OF SAID FIRST CHAMBER, A SUBSTANTIALLY CENTRALLY LOCATED APERTURE COMMUNICATING BETWEEN SAID RECEPTACLE AND SAID SECOND CHAMBER TO PERMIT PASSAGE OF STEAM FROM SAID RECEPTACLE INTO SAID SECOND CHAMBER WHERE SAID STEAM IS CONDENSED, THE CONDENSATE RETURNING TO SAID RECEPTACLE THROUGH SAID APERTURE, AND A VALVE COMMUNICATING BETWEEN SAID SECOND CHAMBER AND THE ATMOSPHERE, SAID VALVE OPERATING WHEN THE PRESSURE IN SAID RECEPTACLE EXCEEDS A PREDETERMINED PRESSURE TO VENT THE EXCESS PRESSURE OF HEATED AIR AND STEAM TO THE ATMOSPHERE.
Claim 2
Dependent Claim 164 words
A KITCHEN POT FOR COOKING FOODSTUFFS COMPRISING A CENTRAL OPEN-TOPPED RECEPTACLE, A THERMAL BELL AFFIXED TO SAID RECEPTACLE AT THE TOP OF SAID RECEPTACLE AND FLARING OUTWARDLY AND DOWNWARDLY FROM SAID AFFIXED POSITION TO FORM A CHAMBER ENTRAPPING HEATED AIR ABOUT SAID RECEPTACLE, A LID REMOVABLY COVERING SAID OPEN END OF SAID RECEPTACLE, SAID LID HAVING A FIRST CHAMBER AND A SECOND CHAMBER, SAID FIRST CHAMBER BEING FILLED WITH INSULATION AND POSITIONED IN CONTACT WITH SAID RECEPTABLE, SAID SECOND CHAMBER BEING POSITIONED ON TOP OF SAID FIRST CHAMBER, A SUBSTANTIALLY CENTRALLY LOCATED APERTURE COMMUNICATING BETWEEN SAID RECEPTACLE AND SAID SECOND CHAMBER TO PERMIT PASSAGE OF STEAM FROM SAID RECEPTACLE INTO SAID SECOND CHAMBER WHERE SAID STEAM IS CONDENSED, THE CONDENSATE RETURNING TO SAID RECEPTACLE THROUGH SAID APERTURE, AND A VALVE COMMUNICATING BETWEEN SAID SECOND CHAMBER AND THE ATMOSPHERE, SAID VALVE OPERATING WHEN THE PRESSURE IN SAID RECEPTACLE EXCEEDS A PREDETERMINED PRESSURE TO VENT THE EXCESS PRESSURE OF HEATED AIR AND STEAM TO THE ATMOSPHERE.

References Cited (Backward Citations)

DE214808C Cited
US173448A Cited
US382595A Cited
US1810860A Cited
FR790118A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-10-04 1969-04-05 1969-10-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-10-04 1973-04-05 1973-10-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-10-04 1977-04-05 1977-10-05 $7700.00 Window Closed / Lapsed

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