US4051994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag closure
Assignee: Mobil Oil AS
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Filing: 1975-12-12
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Granted: 1977-10-04
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Expires: 1995-12-12
Abstract
Abstract A lay flat thermoplastic bag construction having an integral closure means comprising a strip of metallic foil which is secured to one of the bag walls adjacent the open mouth of the bag.
Inventors
- 👤 Daniel Lawrence Donk
- 👤 Robert Hutchins Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:47
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/30; Y; Y10; Y10S; Y10S383/00; Y10S383/905
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A thermoplastic bag comprising a front wall and a rear wall continuously joined together along the bottom and vertical side edges, said bag being opened at the top along the top edges of said front and rear walls, a single strip of metallic foil secured to one of said walls adjacent said open top edges of said bag, said foil being in the form of a V-like configuration with the apex of said V being vertically oriented with respect to said bag walls.
Claim 2
Dependent Claim
83 words
A thermoplastic bag comprising a front wall and a rear wall continuously joined together along the bottom and vertical side edges, said bag being opened at the top along the top edges of said front and rear walls, a single strip of metallic foil secured to one of said walls adjacent said open top edges of said bag, said foil being in the form of a V-like configuration with the apex of said V being vertically oriented with respect to said bag walls.
Claim 3
Dependent Claim
47 words
A thermoplastic bag in accordance with claim 1 wherein the apex of said V-like metallic strip is directed towards said bag wall bottom edge and the legs of said V-like strip extend upwardly and outwardly across said bag wall, terminating adjacent the upper edge of said wall.
Claim 4
Dependent Claim
49 words
A thermoplastic bag in accordance with claim 1 wherein the apex of said V-like metallic strip is directed towards said bag wall top edge and the legs of said V-like strip extend downwardly and outwardly across said bag wall, terminating adjacent the vertical side edges of said bag wall.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |