US4778282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trident interlocking closure profile configuration
Assignee: Glad Products Co
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Filing: 1987-09-10
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Granted: 1988-10-18
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Expires: 2007-09-10
Abstract
Abstract An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration. The co-acting closure element has a profile portion comprising three generally parallel arm portions. The first arm portion terminates in a hook portion, the second arm portion is a generally straight structure having at least one enlarged portion located anterior to its extremity, and the third arm portion terminates in a funnel portion. The closure device is adapted for use with reclosable plastic freezer storage and cooking bags to provide drip-proof and leak-proof seals.
Inventors
- 👤 Michael G. Borchardt
- 👤 Robert T. Dorsey
- 👤 Ewald A. Kamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:12
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/25; B65D33/2508; B65D33/2541; A; A44; A44B; A44B19/00; A44B19/10; A44B19/16; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/50; Y10T; Y10T24/00; Y10T24/25; Y10T24/2532; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T24/45; Y10T24/45152; Y10T24/45157
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
383 words
A closure fastening device comprising a first closure element and a second closure element; said first closure element having a general omega shape, comprising an apex portion and a profile portion extending from said apex portion, said profile portion comprising a first arm portion and a second arm portion spaced apart from each other, said first arm portion and said second arm portion extending from said apex portion in a direction generally perpendicular therefrom, said first arm portion and said second arm portion each having a middle portion which extends generally laterally inwardly, and said first arm portion and said second arm portion each having a top portion which extends generally laterally outwardly before terminating in an outwardly, laterally extending, curving hook portion; said second closure element having a general trident shape, comprising an apex portion and a profile portion extending in a generally perpendicular direction from said apex portion, said profile portion comprising a first arm portion, a second arm portion, and a third arm portion, said first arm portion, said second arm portion, and said third arm portion being generally parallel to and spaced apart from each other, said first arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said second arm portion comprising a generally straight structure extending perpendicularly from said apex portion and having a length shorter than said first arm portion and said third arm portion, said second arm portion having a generally rounded, enlarged configuration at its extremity, said third arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said first closure element and said second closure element forming an interlocked closure fastening device when they are occluded together.
Claim 2
Dependent Claim
383 words
A closure fastening device comprising a first closure element and a second closure element; said first closure element having a general omega shape, comprising an apex portion and a profile portion extending from said apex portion, said profile portion comprising a first arm portion and a second arm portion spaced apart from each other, said first arm portion and said second arm portion extending from said apex portion in a direction generally perpendicular therefrom, said first arm portion and said second arm portion each having a middle portion which extends generally laterally inwardly, and said first arm portion and said second arm portion each having a top portion which extends generally laterally outwardly before terminating in an outwardly, laterally extending, curving hook portion; said second closure element having a general trident shape, comprising an apex portion and a profile portion extending in a generally perpendicular direction from said apex portion, said profile portion comprising a first arm portion, a second arm portion, and a third arm portion, said first arm portion, said second arm portion, and said third arm portion being generally parallel to and spaced apart from each other, said first arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said second arm portion comprising a generally straight structure extending perpendicularly from said apex portion and having a length shorter than said first arm portion and said third arm portion, said second arm portion having a generally rounded, enlarged configuration at its extremity, said third arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said first closure element and said second closure element forming an interlocked closure fastening device when they are occluded together.
Claim 3
Dependent Claim
393 words
A container comprising two sidewalls and a closure fastening device, said closure fastening device comprising a first closure element and a second closure element; said first closure element having a general omega shape, comprising an apex portion and a profile portion extending from said apex portion, said profile portion comprising a first arm portion and a second arm portion spaced apart from each other, said first arm portion and said second arm portion extending from said apex portion in a direction generally perpendicular therefrom, said first arm portion and said second arm portion each having a middle portion which extends generally laterally inwardly, and said first arm portion and said second arm portion each having a top portion which extends generally laterally outwardly before terminating in an outwardly, laterally extending, curving hook portion; said second closure element having a general trident shape, comprising an apex portion and a profile portion extending in a generally perpendicular direction from said apex portion, said profile portion comprising a first arm portion, a second arm portion, and a third arm portion, said first arm portion, said second arm portion, and said third arm portion being generally parallel to and spaced apart from each other, said first arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said second arm portion comprising a generally straight structure extending perpendicularly from said apex portion and having a length shorter than said first arm portion and said third arm portion, said second arm portion having a generally rounded, enlarged configuration at its extremity, said third arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said first closure element and said second closure element forming an interlocked closure fastening device when they are occluded together.
Claim 4
Dependent Claim
393 words
A container comprising two sidewalls and a closure fastening device, said closure fastening device comprising a first closure element and a second closure element; said first closure element having a general omega shape, comprising an apex portion and a profile portion extending from said apex portion, said profile portion comprising a first arm portion and a second arm portion spaced apart from each other, said first arm portion and said second arm portion extending from said apex portion in a direction generally perpendicular therefrom, said first arm portion and said second arm portion each having a middle portion which extends generally laterally inwardly, and said first arm portion and said second arm portion each having a top portion which extends generally laterally outwardly before terminating in an outwardly, laterally extending, curving hook portion; said second closure element having a general trident shape, comprising an apex portion and a profile portion extending in a generally perpendicular direction from said apex portion, said profile portion comprising a first arm portion, a second arm portion, and a third arm portion, said first arm portion, said second arm portion, and said third arm portion being generally parallel to and spaced apart from each other, said first arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said second arm portion comprising a generally straight structure extending perpendicularly from said apex portion and having a length shorter than said first arm portion and said third arm portion, said second arm portion having a generally rounded, enlarged configuration at its extremity, said third arm portion comprising a base portion extending perpendicularly from said apex portion, a generally straight middle portion extending from said base portion to a top portion, the top portion including a hook portion wherein said hook portion terminates in an outwardly extending hook projection portion and in an inwardly extending hook projection portion which is smaller than said outwardly extending hook projection portion; said first closure element and said second closure element forming an interlocked closure fastening device when they are occluded together.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |