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US3270802A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for varying thermal conductivity

Assignee: Individual
•
Filing: 1963-01-10
•
Granted: 1966-09-06
•
Expires: 1983-01-10
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Abstract

No abstract record available.

Inventors

  • 👤 Jay G Lindberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 17:47
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/192; B; B64; B64G; B64G1/00; B64G1/22; B64G1/46; B64G1/50; B64G1/52; B64G1/58; F; F17; F17C; F17C13/00; F17C13/02; F17C13/026; F28; F28F; F28F13/00; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; F28F2013/005; F28F2013/008

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 76 words
A METHOD FOR REGULATING HEAT FLOW COMPRISING THE STEPS OF INTERPOSING A GAS PERMEATED INSULATING MATERIAL BETWEEN A REGION HAVING RELATIVELY HIGH TEMPEATURE AND A REGION HAVING RELATIVELY LOW TEMPERATURE, TRANSFERRING HEAT FROM THE REGION HAVING RELATIVELY HIGH TEMPERATURE TO THE INSULATING MATERIAL, TRANSFERRING HEAT FROM THE INSULATING MATERIAL TO THE REGION OF RELATIVELY LOW TEMPERATURE, SENSING A QUANTITY HAVING A KNOWN RELATION TO THE AMOUNT OF HEAT TRANSFERRED IN ONE OF SAID TRANSFERRING STEPS, AND

References Cited (Backward Citations)

US1909495A Cited
US2109169A Cited
US2212285A Cited
US2513749A Cited
US2598351A Cited
US2863297A Cited
US2890866A Cited
US2910276A Cited
US3105148A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-09-05 1970-03-07 1970-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-09-05 1974-03-07 1974-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-09-05 1978-03-07 1978-09-06 $7700.00 Window Closed / Lapsed

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