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US3587843A Expired / Lapsed US ⏱️ 0.0 years remaining

Package of bags

Assignee: WR Grace and Co
•
Filing: 1967-09-11
•
Granted: 1971-06-28
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Expires: 1987-09-11
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Abstract

Abstract THIS INVENTION IS DIRECTED TO A CHAIN OF IMBRICATED BAGS CONNECTED TOGETHER AND SUPPORTED BY TWO STRANDS OF TAPE, THE BAGS EACH HAVE TWO OVERLYING SIDES, ONE OF THE SIDES BEING SECURED TO BOTH OF SAID TAPES, THE BAGS OPEN ENDS ARE ORIENTED IN THE SAME DIRECTION RESPECTING THE TAPES AND EACH BAG AFTER THE BOTTOM BAG RELATIVE TO THE TAPE IS OFFSET ALONG THE TAPES AND OVERLIES THE OPENING OF THE UNDERLYING BAG, THE TAPES ARE SPACED APART ABOUT AN EQUAL DISTANCE WHERE THEY ENGAGE EACH OF SAID BAGS, AND THE LEAD BAG INFLATES TO A RELATIVELY SQUARE OPENING WHEN THE TAPES ARE HELD IN PARALLEL SPACED APART DISPOSITION ON A FLAT SURFACE, THE BAGS ARE SECURED TO THE TAPE WITH A TACK SUFFICIENT TOM ALLOW A PULL IN EXCESS OF 2 POUNDS TO SEPARATE THE BAGS FROM THE TAPE AND TO HOLD THE BAGS SECURELY TO THE TAPE AGAINST A PULL OF LESS THAN ONE-HALF POUND WHEN THE PULL IS APPLIED AT AN ANGLE OF 30*.

Inventors

  • 👤 Ralph L Wing

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 09:19
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/12; B65B43/123; B65B43/26; B65B43/34; B65B43/36; B65D; B65D33/00; B65D33/001

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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