US3670876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag closure means
Assignee: DowBrands Inc
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Filing: 1970-06-01
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Granted: 1972-06-20
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Expires: 1990-06-01
Abstract
Abstract A bag for household use including an improved closure comprising a plurality of pressure adhesive strips located in spaced apart relationship on an exterior portion of the bag, and preferably extending in parallel across the entire width thereof. An offset flap portion is adapted to be folded over and attached to one or more of the adhesive strips to tightly close the bag. Accompanying closure, the bag size can be automatically adjusted to better accommodate the size of the article being packaged therewithin. Additionally, a connected series of such bags can be tightly wound on a roll and ''''tacked'''' together by the adhesive. The resultant roll is of a firm not easily disarranged character, and remains neat and in register along the ends thereof until the last bag is used.
Inventors
- 👤 Chester P Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:32
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/18; B65D33/20; B65D75/00; B65D75/40; B65D75/42
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
234 words
A strip of household bags comprised of polymeric film material and each including opposed first and second walls, said second wall including an extension beyond said first wall at a region of said bag to provide an offset flap portion, at least a portion of the edge of said first wall positioned adjacent said flap portion being free of said second wall to provide an opening into said bag, the exterior face of said first wall including a plurality of separate pressure adhesive strip areas cooperable with said flap portion for closing said opening, said pressure adhesive strip areas being located at varied spaced distances from said flap portion, whereby said flap portion by being attached selectively to one or more of the pressure adhesive strip areas controllably adjusts the internal volume of said bag to better accommodate the size of the article to be packaged therein, said pressure adhesive strip areas extending substantially across the entire exterior face of said first walls in substantially parallel alignment with said edge portion, said bags being wound on a core in roll form, and with the layers of said roll being firmly and substantially continuously tacked together by said adhesive strip areas to provide a roll of substantially unitary character without tending to telescope, said bags being separable from each other by lines of weakness such that the bags can be individually dispensed from the roll.
Claim 2
Dependent Claim
234 words
A strip of household bags comprised of polymeric film material and each including opposed first and second walls, said second wall including an extension beyond said first wall at a region of said bag to provide an offset flap portion, at least a portion of the edge of said first wall positioned adjacent said flap portion being free of said second wall to provide an opening into said bag, the exterior face of said first wall including a plurality of separate pressure adhesive strip areas cooperable with said flap portion for closing said opening, said pressure adhesive strip areas being located at varied spaced distances from said flap portion, whereby said flap portion by being attached selectively to one or more of the pressure adhesive strip areas controllably adjusts the internal volume of said bag to better accommodate the size of the article to be packaged therein, said pressure adhesive strip areas extending substantially across the entire exterior face of said first walls in substantially parallel alignment with said edge portion, said bags being wound on a core in roll form, and with the layers of said roll being firmly and substantially continuously tacked together by said adhesive strip areas to provide a roll of substantially unitary character without tending to telescope, said bags being separable from each other by lines of weakness such that the bags can be individually dispensed from the roll.
Claim 3
Dependent Claim
155 words
A series of connected bags comprised of polymeric film material and wound on a roll, said bags individually including opposed first and second walls and offset flap portions integrally attached to said second walls, said first walls being free of said second walls at a region adjacent said flaps to provide openings into said bags, the exterior faces of said first walls including a plurality of spaced apart pressure adhesive strip areas extending substantially continuously and circumferentially on said roll and cooperable with said flap portions for closing said openings, said pressure adhesive strip areas being at all times covered on said roll by the first and second walls of the bags and serving to firmly and continuously tack said bags together to provide a roll of bags having minimal tendency to telescope or become unraveled, said bags being separated by lines of weakness such that the bags can be dispensed from the roll individually.
Claim 4
Dependent Claim
155 words
A series of connected bags comprised of polymeric film material and wound on a roll, said bags individually including opposed first and second walls and offset flap portions integrally attached to said second walls, said first walls being free of said second walls at a region adjacent said flaps to provide openings into said bags, the exterior faces of said first walls including a plurality of spaced apart pressure adhesive strip areas extending substantially continuously and circumferentially on said roll and cooperable with said flap portions for closing said openings, said pressure adhesive strip areas being at all times covered on said roll by the first and second walls of the bags and serving to firmly and continuously tack said bags together to provide a roll of bags having minimal tendency to telescope or become unraveled, said bags being separated by lines of weakness such that the bags can be dispensed from the roll individually.
Claim 5
Dependent Claim
17 words
The roll of claim 2 wherein said roll is packaged in an outer covering comprising fIlm material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |