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US3720524A Expired / Lapsed US ⏱️ 0.0 years remaining

Container assembly with frangible mixing means

Assignee: Individual
•
Filing: 1970-10-16
•
Granted: 1973-03-13
•
Expires: 1990-10-16
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Abstract

Abstract THE PRESENT DISCLOSURE RELATES TO A CONTAINER ASSEMBLY DESIGNED TO ALLOW IMPROMPTU PREPATATION AND SERVING OF FRESH SALAD DRESSING ON THE TABLE. A LOWER CONTAINER CONTAINING SALAD OIL AND AN UPPER CONTAINER CONTAINING A SPICE-VINEGAR MIXTURE ARE INTEGRALLY JOINED. A SEAL CUTTER ASSEMBLY IS PROVIDED IN THE INSIDE OF THE OPENING PORTION OF THE OIL CONTAINER, WHILE A SEAL IS SECURED IN THE INSIDE OF THE OPENING PORTION OF THE UPPER CONTAINER. THE MOUTH OF THE UPPER CONTAINER IS ADAPTED TO BE ROTATED WHILE BEING KEPT IN A CLOSELY FIT ENGAGEMENT IN THE MOUTH OF THE OIL CONTAINER. WHEN THE CONTAINERS ARE ROTATED RELATIVE CUT EACH OTHER, THE SEAL IN THE UPPER CONTAINER IS READILY CUT AWAY BY THE SEAL CUTTER FIXED TO THE LOWER CONTAINER, THUS ALLOWING INTERMIXTURE OF THE MATERIALS IN THE CONTAINERS. D R A W I N G

Inventors

  • 👤 S Nakagami

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:45
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/28; B65D51/2807; B65D51/2814; B65D81/00; B65D81/32; B65D81/3205; B65D81/3211

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) 1976-03-12 1976-09-11 1977-03-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-12 1980-09-11 1981-03-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-12 1984-09-11 1985-03-13 $7700.00 Window Closed / Lapsed

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