Draw tape bag with multilayer draw tape
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1991
Issued Date -
N/A
app pub date -
Aug 16, 1989
filing date -
Jun 28, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A draw tape bag comprising: (a) two panels formed from a thermoplastic material, the sides of said panels being joined on three sides and open on the fourth side to form a top in said bag; (b) a hem portion of each panel being folded over adjacent said top to form a tubular hem; (c) draw tapes in each tubular hem secured at said sides of said panels, said draw tapes being characterized as a multilayer structure having at least two layers wherein one layer is sealable to a panel and is characterized as having sealability to the thermal plastic panels greater than at least one of other layers of the draw tape and also characterized as having strength less than said other layer of the draw tape; (d) a seal between each hem portion and the adjacent panel across the width of said bag below said draw tape; and (e) an opening in said hem portion for accessing said draw tape.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully