US3797732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic bag having elongate apertures angularly disposed
Assignee: Union Carbide Corp
•
Filing: 1971-11-03
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Granted: 1974-03-19
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Expires: 1991-11-03
Abstract
Abstract The rear wall of a bag for packaging food, particularly meat, which is remote from the closed end of the bag is provided with elongated apertures angularly disposed with respect to the longitudinal axis of the bag and to each other for mounting a stack of bags on a wicket.
Inventors
- 👤 M Melin
- 👤 R Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/001
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A bag formed of flexible thermoplastic film adapted to being mounted on a wicket and having a front wall; a rear wall; and a closed end, at least said rear wall having a plurality of apertures therein for accommodation of the legs of a wicket at the end remote from said closed end, said apertures being elongate and their longitudinal axes being arranged at an acute angle to each other and to the longitudinal axis of the bag.
Claim 2
Dependent Claim
78 words
A bag formed of flexible thermoplastic film adapted to being mounted on a wicket and having a front wall; a rear wall; and a closed end, at least said rear wall having a plurality of apertures therein for accommodation of the legs of a wicket at the end remote from said closed end, said apertures being elongate and their longitudinal axes being arranged at an acute angle to each other and to the longitudinal axis of the bag.
Claim 3
Dependent Claim
28 words
A bag as defined by claim 1 in which said film is a flattened tube and said closed end has a seal between said front and rear walls.
Claim 4
Dependent Claim
39 words
A bag as defined by claim 2 in which the longitudinal axes of said apertures are divergent with respect to said closed end and define an angle with the longitudinal axis of said bag of about 10* to 25*.
Claim 5
Dependent Claim
39 words
A bag as defined by claim 2 in which the longitudinal axes of said apertures are convergent with respect to said closed end and define an angle with the longitudinal axis of said bag of about 10* to 25*.
Claim 6
Dependent Claim
37 words
A bag as defined by claim 2 in which the extremities of said apertures nearer said remote end of said bag are generally vee-shaped, the apices thereof being directed away from said closed end of said bag.
Claim 7
Dependent Claim
22 words
A bag as defined by claim 5 in which the length of said apertures is about two to three times their width.
Claim 8
Dependent Claim
14 words
A bag as defined by claim 6 in which said closed end is arcuate.
Claim 9
Dependent Claim
14 words
A bag as defined by claim 7 in which said angle is about 15*.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |