Patent US2336106A successfully refreshed from Google Patents.
US4246288A
Expired / Lapsed
US
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Reclosable package
Assignee: Cryovac LLC
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Filing: 1979-08-09
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Granted: 1981-01-20
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Expires: 1999-08-09
Abstract
Abstract This invention relates to a reclosable package including a semi-rigid receptacle and a flexible cover and an interlocking rib and groove closure strip which allows the package to be reclosable.
Inventors
- 👤 Philip A. Sanborn, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:40
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/25; B65D33/2508; B65D33/2541; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/20; B29C66/24; B29C66/242; B29C66/2424; B29C66/24243; B29C66/24244; B29C66/346; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/534; B29C66/5346; B29C66/53461; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81457; B65D1/00; B65D1/22; B65D1/26; B65D1/30; B65D33/2516; B65D33/2533; B29C2793/00; B29C2793/0081; B29C66/70; B29C66/71; B29C66/72; B29C66/723; B29C66/7234; B29C66/72341; B29L; B29L2005/00; B65D2575/00; B65D2575/52; B65D2575/58; B65D2575/586; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/50; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T24/45157; Y10T24/45168
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
242 words
A reclosable package comprising: (a) a product; (b) a semi-rigid, thermoplastic forming web having a cavity formed therein with a peripheral flange having a continuous sealing surface around the opening to said cavity, said cavity containing said product; (c) a separable reclosable, flexible, thermoplastic two part interlocked closure strip with each part comprising longitudinal, interlocking rib and groove elements and each part having a sealing surface with one sealing surface thereof sealed to said sealing surface of said forming web, said strip being adjacent and parallel to but spaced apart from one edge of the forming web, said strip extending substantially the length of said edge, and a portion of the strip at each end thereof having an indentation; and, (d) a flexible covering web sealed by a peripheral heat seal to the sealing surface of the peripheral flange of said forming web hermetically enclosing the product and closure strip, said covering web being sealed to the other sealing surface of said closure strip, the indentation at each end of said strip permitting each end of said closure strip to terminate in the peripheral seal in a continuous, smooth seal between said covering web, forming web, and closure strip whereby said hermetically sealed package may be opened from one side by severing or tearing the covering or forming web or both between said closure strip and adjacent peripheral seal and thereafter separating the closure strip parts to gain access to the product.
Claim 2
Dependent Claim
242 words
A reclosable package comprising: (a) a product; (b) a semi-rigid, thermoplastic forming web having a cavity formed therein with a peripheral flange having a continuous sealing surface around the opening to said cavity, said cavity containing said product; (c) a separable reclosable, flexible, thermoplastic two part interlocked closure strip with each part comprising longitudinal, interlocking rib and groove elements and each part having a sealing surface with one sealing surface thereof sealed to said sealing surface of said forming web, said strip being adjacent and parallel to but spaced apart from one edge of the forming web, said strip extending substantially the length of said edge, and a portion of the strip at each end thereof having an indentation; and, (d) a flexible covering web sealed by a peripheral heat seal to the sealing surface of the peripheral flange of said forming web hermetically enclosing the product and closure strip, said covering web being sealed to the other sealing surface of said closure strip, the indentation at each end of said strip permitting each end of said closure strip to terminate in the peripheral seal in a continuous, smooth seal between said covering web, forming web, and closure strip whereby said hermetically sealed package may be opened from one side by severing or tearing the covering or forming web or both between said closure strip and adjacent peripheral seal and thereafter separating the closure strip parts to gain access to the product.
Claim 3
Dependent Claim
37 words
The reclosable package of claim 1 wherein said forming web includes a series of perforations therein to form a tear line parallel to said closure strip, said perforations being sealed by a portion of said closure strip.
Claim 4
Dependent Claim
28 words
The reclosable package of claim 2 wherein each end of said tear line terminates in a notch in the sealed peripheral area in opposite sides of said package.
Claim 5
Dependent Claim
17 words
The reclosable package of claim 3 wherein said indentations are punched out portions of said closure strip.
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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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |