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US3721367A Expired / Lapsed US ⏱️ 0.0 years remaining

Stackable containers

Assignee: Standard Oil Co
•
Filing: 1970-08-03
•
Granted: 1973-03-20
•
Expires: 1990-08-03
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Abstract

Abstract A STACKABLE CONTAINER COMPRISING A BOTTOM, A SIDEWALL INTEGRAL WITH SAID BOOM TAPERING UPWARDLY AND OUTWARDLY FROM SAID BOTTOM AND TERMINATING IN AN OPEN UPPER END, A FIRST CIRCUMFERENTIAL INTERMITTENT SHOULDER IN THE CONTAINER SIDEWALL, AND A SECOND CIRCUMFERENTIAL INTERMITTENT SHOULDER IN THE CONTAINER SIDEWALL, AT LEAST ONE OF SAID SHOULDERS BEING FORMED BY SPACED PROJECTIONS NO PART OF WHICH SLOPE INWARDLY TOWARD THE CENTRAL AXIS OF THE CONTAINER, THE OTHER SHOULDER MAY BE COMPRISED OF SPACED PORTIONS NO PART OF WHICH SLOPE INWARDLY TOWARD THE CENTRAL AXIS OF THE CONTAINER, THE EFFECTIVE WIDTH OF EACH PROJECTION FORMING ONE SHOULDER BEING GREATER THAN THE SPACING BETWEEN THE SPACED PROJECTIONS OR PORTIONS OF THE OTHER SHOULDER, THEREBY POSITIVELY LIMITING THE NESTING OF LIKE TELESCOPICALLY ASSOCIATED CONTAINERS. D R A W I N G

Inventors

  • 👤 R Fletcher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 03:07
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/22; B65D1/26; B65D1/265

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) 1976-03-19 1976-09-18 1977-03-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-19 1980-09-18 1981-03-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-19 1984-09-18 1985-03-20 $7700.00 Window Closed / Lapsed

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