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US3587578A Expired / Lapsed US ⏱️ 0.0 years remaining

Pack for applying therapeutic moist heat

Assignee: Chattanooga Pharmacal Co
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Filing: 1968-08-28
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Granted: 1971-06-28
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Expires: 1988-08-28
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Abstract

Abstract A PACK FOR APPLYING THEREAPEUTIC MOIST HEAT CONTAINING A SORPTIVE MATERIAL BETWEEN A WATER AND WATER VAPOR PERVIOUS FABRIC SIDE PLACED TOWARD THE ANATOMY OF A PATIENT AND A WATER AND WATER VAPOR IMPERVIOUS MATERIAL, WHICH IS RELATIVELY ELASTIC AND STRETCHABLE COMPARED WITH THE FABRIC, FORMING THE OTHER SIDE OF THE BAG. THE MATERIAL OF THE OUTER SIDE OF THE BAG IS A GOOD HEAT INSULATOR AND IS MOLDED TO FORM A PLURALITY OF TROUGHS SO THAT, WHEN IT IS SEALED TO THE INNER SIDE OF THE BAG, USUALLY A FABRIC, A PLURALITY OF SEPARATE COMPARTMENTS HOLDING THE SORPTIVE MATERIAL ARE FORMED. STEAM OR WATER VAPOR CAN ESCAPE ONLY THROUGH THE FABRIC SIDE TOWARD THE ANATOMY OF A PATIENT AND HEAT LOSS ON THE OUTER SIDE OF THE BAG IS MINIMIZED. ALSO, THE ELASTIC, STRETCHABLE, MATERIAL OF THE OUTER SIDE OF THE BAG STRETCHES CONSIDERABLY MORE THAN THE FABRIC, THEREBY ENABLING THE FABRIC SIDE TO BE IN CLOSE CONTACT OVER MOST OF THE AREA OF THE FABRIC WITH THE ANATOMY OF THE PATIENT AND TO BEND TOWARD ITSELF ON A RATHER SMALL RADIUS. SO AS TO FIT CLOSELY AROUND THE BODY PARTS OF SMALL DIAMETER, SUCH AS SMALL WRISTS, ARMS. ANKLES AND LEGS.

Inventors

  • 👤 Jack M Walker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:21
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61H; A61H36/00; A61F2007/0001; A61F2007/0203; A61F2007/0206; A61F2007/0209; A61F2007/0214; A61F2007/0244; A61F2007/026; A61F2007/0268; F; F28; F28D; F28D20/00; F28D2020/0004; F28D2020/0008

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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