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US3798338A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for applying thermoplastic coatings to food and pharmceutical products

Assignee: Pillsbury Co
•
Filing: 1972-05-30
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Granted: 1974-03-19
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Expires: 1992-05-30
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Abstract

Abstract THERMOPLASTIC PROTECTIVE OR MOISTURE RESISTANT COAT INGS, E.G. HYDROGENATED VEGETABLE OIL, ARE APPLIED TO A FOOD PRODUCT BY METERING THE FOOD PRODUCT AND THE THERMOPLASTIC COATING INTO A COATING ZONE, MAINTAINING THE THERMOPLASTIC COATING MATERIAL IN A LIQUID CONSISTENCY IN THE COATING ZONE WHILE MINIMIZING THE HEATING OF THE FOOD PRODUCT TO THEREBY ESTABLISH A TEMPERATURE DIFFERENTIAL BETWEEN THE COATING AND THE FOOD PRODUCT AND AGITATING THE FOOD PRODUCT TO SPREAD THE HEATED LIQUID COATING OVER THE SURFACE OF THE FOOD PRODUCT AS A CONTINUOUS FILM AND ALLOWING THE LIQUID TO CONGEAL ON THE SURFACE OF THE FOOD PRODUCT. TYPICALLY, HEAT IS APPLIED TO THE OUTSIDE SURFACE OF A ROTATING COATING CYLINDER TO HEAT OR MAINTAIN THE COATING MATERIAL IN A LIQUISD CONDITION BY CONDUCTION.

Inventors

  • 👤 E Galle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 13:03
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/16; A23P; A23P20/00; A23P20/10; A23P20/15; A23P20/18; A61; A61J; A61J3/00; A61J3/005

Claims Analysis

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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) 1977-03-18 1977-09-17 1978-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-18 1981-09-17 1982-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-18 1985-09-17 1986-03-19 $7700.00 Window Closed / Lapsed

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