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US4674634A Expired / Lapsed US ⏱️ 0.0 years remaining

Package of reclosable plastic bags

Assignee: 3M Co
•
Filing: 1985-06-21
•
Granted: 1987-06-23
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Expires: 2005-06-21
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Abstract

Abstract A stack of plastic bags having a reclosable adhesive seal wherein the bags each have a flap and the bags are stacked end to end with the flaps at alternate opposite edges of the stack and each bag is adhered to the adjacent bag by the adhesive for sealing the flap to close the bag.

Inventors

  • 👤 Shari J. Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 08:14
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/0894; B65D33/00; B65D33/001; Y; Y10; Y10S; Y10S206/00; Y10S206/82

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 155 words
A stack of adhesive sealable plastic bags comprising a plurality of bags each comprising a rear panel and front panel joined along three edges to form an envelope and a flap connected to the front panel and extending from the front panel to fold over a fourth open edge of the envelope, and a strip of resealable adhesive positioned on one of the rear side of said flap and the rear panel of said bag to seal the flap against the rear panel, said bags being positioned in a stack with opposite panels of adjacent bags in face to face relationship and with the flaps at alternate opposite edges of the stack with the strip of resealable adhesive on one bag engaging the front panel of the next adjacent bag to hold all bags in the stack joined by the strips of resealable adhesive used to seal the individual bags when separated from the stack.
Claim 2
Dependent Claim 155 words
A stack of adhesive sealable plastic bags comprising a plurality of bags each comprising a rear panel and front panel joined along three edges to form an envelope and a flap connected to the front panel and extending from the front panel to fold over a fourth open edge of the envelope, and a strip of resealable adhesive positioned on one of the rear side of said flap and the rear panel of said bag to seal the flap against the rear panel, said bags being positioned in a stack with opposite panels of adjacent bags in face to face relationship and with the flaps at alternate opposite edges of the stack with the strip of resealable adhesive on one bag engaging the front panel of the next adjacent bag to hold all bags in the stack joined by the strips of resealable adhesive used to seal the individual bags when separated from the stack.
Claim 3
Dependent Claim 18 words
A stack of plastic bags according to claim 1 wherein said strip of adhesive is on said flap.
Claim 4
Dependent Claim 29 words
A stack of plastic bags according to claim 1 wherein said strip of adhesive is on said rear panel adjacent and parallel to the open edge of the envelope.
Claim 5
Dependent Claim 187 words
A package of adhesive sealable plastic bags comprising a stack of bags each comprising a rear panel and front panel joined along three edges to form an envelope and a flap connected to the front panel and extending from the front panel to fold over a fourth open edge of the envelope, and a strip of resealable adhesive positioned on one of the rear side of the flap and the rear panel to be exposed on the rear of the bag to seal the flap against the rear panel, said bags being positioned in said stack with opposite panels of adjacent bags in face to face relationship and with the flaps at alternate opposite edges of the stack with the strip of resealable adhesive on one bag engaging the front panel of the next adjacent bag to hold all bags in the stack joined by the strips of resealable adhesive, and a box enclosing said stack of bags, said box comprising a top panel having an opening extending across said top panel and parallel to said strips of resealable adhesive through which said bags may be dispensed.
Claim 6
Dependent Claim 187 words
A package of adhesive sealable plastic bags comprising a stack of bags each comprising a rear panel and front panel joined along three edges to form an envelope and a flap connected to the front panel and extending from the front panel to fold over a fourth open edge of the envelope, and a strip of resealable adhesive positioned on one of the rear side of the flap and the rear panel to be exposed on the rear of the bag to seal the flap against the rear panel, said bags being positioned in said stack with opposite panels of adjacent bags in face to face relationship and with the flaps at alternate opposite edges of the stack with the strip of resealable adhesive on one bag engaging the front panel of the next adjacent bag to hold all bags in the stack joined by the strips of resealable adhesive, and a box enclosing said stack of bags, said box comprising a top panel having an opening extending across said top panel and parallel to said strips of resealable adhesive through which said bags may be dispensed.
Claim 7
Dependent Claim 43 words
A package according to claim 4 wherein a polymeric membrane with a slotted opening is positioned at said opening in said top panel and reduces the size of the opening in said top panel and affords a restricted opening for dispensing said bags.
Claim 8
Dependent Claim 18 words
A package of plastic bags according to claim 4 wherein said strip of adhesive is on said flap.
Claim 9
Dependent Claim 29 words
A package of plastic bags according to claim 4 wherein said strip of adhesive is on said rear panel adjacent and parallel to the open edge of the envelope.
Claim 10
Dependent Claim 30 words
A package of plastic bags according to claim 6 wherein said strip of adhesive is provided by a length of double coated pressure sensitive adhesive tape applied to the flap.
Claim 11
Dependent Claim 30 words
A package of plastic bags according to claim 6 wherein said strip of adhesive is a length of adhesive tape having one edge adhered to the edge of said flap.

References Cited (Backward Citations)

US2671602A Cited
US2715493A Cited
US3770188A Cited
US3915302A Cited
US4349123A Cited
US4453649A Cited
US4500021A Cited
US4502599A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-22 1990-12-22 1991-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-22 1994-12-22 1995-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-22 1998-12-22 1999-06-23 $7700.00 Window Closed / Lapsed

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