US3670947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanger bag with flap closure
Assignee: WR Grace and Co
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Filing: 1970-08-10
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Granted: 1972-06-20
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Expires: 1990-08-10
Abstract
Abstract A hanger bag is formed from a single, elongated, sheet of flexible thermoplastic film by cutting a series of spaced apart notches in one of the longitudinal edges of said film, the distance between said notches being the desired width of the finished bag; doubling back the opposite longitudinal edge of the sheet to the desired height of the finished bag; folding the notched edge over the opposite edge; heat-sealing a hanger or handle member to the upper folded over edge between the spaced apart notches; and, heat-sealing and severing the folded film transversely, said heat seal passing through said notch, whereby a finished bag is formed.
Inventors
- 👤 Albert Joseph Tangredi
- 👤 Marc Robert Zuckerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:22
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/14; B65D33/16; B65D33/18; B65D33/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A hanger bag comprising: a. a bag member formed from a single sheet of flexible, thermoplastic film, a first portion of said film being folded over on itself along a lower fold line defining the bottom of the bag and the side edges of said first portion of said sheet being sealed together to form a bag pocket; b. a closure flap formed by the remaining portion of said sheet, said remaining portion being folded over along an upper fold line defining the top of the bag, said upper fold line being spaced apart from the opening to said bag pocket, the side edges of said remaining portion being sealed to each other for a portion of the distance from said top to said opening, the unsealed portion of said edges of said sheet forming the closure flap being narrower than said sealed portion and extending downwardly to cover said opening; and, c. a handle member attached to said bag adjacent the top thereof.
Claim 2
Dependent Claim
164 words
A hanger bag comprising: a. a bag member formed from a single sheet of flexible, thermoplastic film, a first portion of said film being folded over on itself along a lower fold line defining the bottom of the bag and the side edges of said first portion of said sheet being sealed together to form a bag pocket; b. a closure flap formed by the remaining portion of said sheet, said remaining portion being folded over along an upper fold line defining the top of the bag, said upper fold line being spaced apart from the opening to said bag pocket, the side edges of said remaining portion being sealed to each other for a portion of the distance from said top to said opening, the unsealed portion of said edges of said sheet forming the closure flap being narrower than said sealed portion and extending downwardly to cover said opening; and, c. a handle member attached to said bag adjacent the top thereof.
Claim 3
Dependent Claim
12 words
The bag of claim 1 wherein said handle member is a hanger.
Claim 4
Dependent Claim
11 words
The bag of claim 2 wherein the thermoplastic sheet is polypropylene.
Claim 5
Dependent Claim
11 words
The bag of claim 2 wherein the thermoplastic sheet is polyethylene.
Claim 6
Dependent Claim
16 words
The bag of claim 2 wherein the hanger is formed from a relatively rigid thermoplastic 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 |