US4117934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclosable bag
Assignee: ATC AQUISITION Corp
•
Filing: 1977-02-22
•
Granted: 1978-10-03
•
Expires: 1997-02-22
Abstract
Abstract The back wall of a plastic bag formed of heat sealable film-type material is folded over a stiffener strip and is sealed to itself. The stiffener strip is intermediate at least two plies formed from the overfolded back wall and a bag mouth portion is located intermediate the stiffener strip and the bottom of the bag.
Inventors
- 👤 John C. Mowli
- 👤 Harry Bala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:32
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/30; Y; Y10; Y10S; Y10S383/00; Y10S383/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A plastic bag formed of heat sealable film-type material and including a front wall, a back wall and closed bottom and side edges, the improvement comprising, in combination: a stiffener strip capable of being bent manually and retaining the bent shape; the front wall and the back wall being folded over said stiffener strip and being heat sealed to the front wall whereby the stiffener strip is intermediate four plies formed from the front wall and the back wall; said heat sealed walls forming a pocket for said stiffener strip; and a bag mouth portion located intermediate said stiffener strip and said closed bottom, said bag mouth portion comprising a score line capable of being easily severed by manual manipulation.
Claim 2
Dependent Claim
120 words
A plastic bag formed of heat sealable film-type material and including a front wall, a back wall and closed bottom and side edges, the improvement comprising, in combination: a stiffener strip capable of being bent manually and retaining the bent shape; the front wall and the back wall being folded over said stiffener strip and being heat sealed to the front wall whereby the stiffener strip is intermediate four plies formed from the front wall and the back wall; said heat sealed walls forming a pocket for said stiffener strip; and a bag mouth portion located intermediate said stiffener strip and said closed bottom, said bag mouth portion comprising a score line capable of being easily severed by manual manipulation.
References Cited (Backward Citations)
FR1256236A
Cited
GB936692A
Cited
US3150813A
Cited
US3093295A
Cited
US3327926A
Cited
US3542190A
Cited
US3545668A
Cited
US3889871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-02 | 1982-04-03 | 1982-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-02 | 1986-04-03 | 1986-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-02 | 1990-04-03 | 1990-10-03 | $7700.00 | Window Closed / Lapsed |