Patent US4335817A successfully refreshed from Google Patents.
US4335817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy openable and closable bag with slide fastener
Assignee: Talon Inc
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Filing: 1980-02-06
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Granted: 1982-06-22
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Expires: 2000-02-06
Abstract
Abstract A reclosable bag has elongated opening means adapted to be permanently opened with a slide fastener having support tapes secured to the bag on respective opposite sides of the opening means for forming a closure over the opening means once the opening means have been permanently opened.
Inventors
- 👤 Karl E. Bahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:00
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/25
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
101 words
A reclosable bag comprising a bag having a top opening, means for closing the top opening, and a sidewall, said bag also having elongated closed opening means including a closed tear strip formed in the sidewall and adapted to be permanently opened, and a slide fastener having a pair of support tapes and a pair of rows of interlocking coupling elements extending from inner edges of the respective support tapes, said support tapes being secured to the sidewall on respective opposite sides of the tear strip for forming a closure for the opening means after the tear strip has been opened.
Claim 2
Dependent Claim
101 words
A reclosable bag comprising a bag having a top opening, means for closing the top opening, and a sidewall, said bag also having elongated closed opening means including a closed tear strip formed in the sidewall and adapted to be permanently opened, and a slide fastener having a pair of support tapes and a pair of rows of interlocking coupling elements extending from inner edges of the respective support tapes, said support tapes being secured to the sidewall on respective opposite sides of the tear strip for forming a closure for the opening means after the tear strip has been opened.
Claim 3
Dependent Claim
70 words
A reclosable bag as claimed in claim 1 wherein the tear strip is formed by a pair of parallel lines of perforations in the sidewall, a third line of perforations in the sidewall extending between the parallel lines of perforations at one end of the tear strip, and a curved cut line in the sidewall extending between the parallel lines of perforations at the other end of the tear strip.
Claim 4
Dependent Claim
23 words
A reclosable bag as claimed in claim 1 or 2 wherein the support tapes are secured to an inside surface of the bag.
Claim 5
Dependent Claim
78 words
A reclosable bag as claimed in claim 1 or 2 wherein said support tapes have outer edge portions which are secured to an inside surface of the sidewall on respective opposite sides of the tear strip, and the width of the slide fastener between the outer edge portions is greater than the sidewall portion between the attachments to the support tapes so that the slide fastener is free of stress prior to the tear strip being permanently opened.
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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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |