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US3682597A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for testing fatty acids content in edible oils and protective shipper therefor

Assignee: Interstate Foods Corp
•
Filing: 1969-12-30
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Granted: 1972-08-08
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Expires: 1989-12-30
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Abstract

Abstract A PRE-ASSEMBLED DISPOSABLE TEST, FOR TESTING FOR DEVELOPMENT OF EXCESSIVE FATTY ACIDS IN COOKING OIL BY OBSERVING THE COLOR CHANGE OF A SELECTED AMOUNT OF A VOLATILE AND FLAMMABLE TEST SOLUTION MIXED WITH A SELECTED SAMPLE OF HOT COOKING OIL, IS PROVIDED BY THE COMBINATION OF A SEALED TEST VIAL OF GLASS OF PREDETERMINED CAPACITY CONTAINING A PREDETERMINED AMOUNT OF TEST SOLUTION LEAVING SPACE FOR A PRE-SELECTED AMOUNT OF HOT COOKING OIL TO BE ADDED TO THE LEVEL OF A SELECTED INDICIA DEFINED ON THE VIAL. THE GLASS VIAL CONVENIENTLY PROVIDES FOR A GAS TIGHT SEAL BEFORE USE, AND SAFELY ACCEPTS HOT OIL THEREINTO WHILE CONVENIENTLY PERMITTING VIEW OF THE COLOR CHANGE. A PROTECTIVE SHIPPER CARTON IS DEFINED BY AN INEXPENSIVE PUNCHED AND FOLDED CARDBOARD BLANK.

Inventors

  • 👤 Robert L Husch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 06:32
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/03; G01N31/00; G01N31/22

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) 1975-08-08 1976-02-07 1976-08-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-08 1980-02-07 1980-08-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-08 1984-02-07 1984-08-08 $7700.00 Window Closed / Lapsed

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