IP Library Granted Patent US 12,420,987
Granted Patent B1
US 12,420,987 · App. 19/076,933 · Granted Sep 23, 2025

Reinforced paper bag

Inventor: Peter L. Levy (San Francisco, CA)
B65D33/02B31B70/876B65D33/105B31B2160/20
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Quick Facts
Patent No.
US 12,420,987
App. No.
19/076,933
Granted
Sep 23, 2025
Kind
B1
Abstract

A reliable leakage resistant reinforced paper bag having reinforcement strips coupling the two handles and traversing the bag handle sides, spanning the bottom and coupled to the opposite bag side handle while increasing reliability and carrying capacity of the bag.

Claims (25)

1. An reinforced paper bag comprising:

a paper bag with four lateral sides, a bottom and two handles at the bag top edge;

the two handles on opposite sides of the paper bag configured for carrying objects inside the paper bag;

each handle coupled to at least one paper bag reinforcement strip;

the reinforcement strip material comprising torrofacted paper, and

each bag reinforcement strip coupled to the paper bag surface and traversing the paper bag from one paper bag handle, across the bag bottom surface, traversing the opposite side surface and to the opposite side handle

whereby a paper bag having reinforcement strips from at least one reinforcement strip coupling the two handles and traversing the bag side surfaces and bottom surface provides heavier load carrying capacity to the reinforced bag.

2. A reinforced paper bag as in claim 1 further comprising a reinforcement strip that is configured in a continuous loop forming two opposing handles and at least one bag traversing reinforcement loop.

3. A reinforced paper bag as in claim 1 further comprising reinforcement strip material selected from a set of strip materials comprising folded strength enhanced paper, threaded paper, cloth blend, cloth paper, wax paper, tape, ribbon, kraft paper, reinforced twisted, folded paper and biodegradable plastic.

4. A reinforced paper bag as in claim 1 further comprising coupling the reinforcement strip and bag from a group of coupling material comprising thread, staples, staple, acrylic varnish and glues of all types.

5. A reinforced paper bag as in claim 1 further comprising bag handles made of material from a group consisting reinforced paper, folded paper, ribbon, composite paper, thread, cloth paper composite, reinforced twisted fiber, ribbon and cloth.

6. A reinforced paper bag as in claim 1 further comprising a reinforcing strip traversing the bag bottom and perpendicular to the bag handle side reinforcing strips traversing the bag bottom.

7. A method for a reinforced paper bag further comprising the steps of:

providing a paper bag with four lateral sides, a bottom and two handles at the bag open top edge;

coupling the two handles on opposite sides of the paper bag top edge for carrying contents inside the paper bag by the two handles;

firmly coupling each handle to at least one paper bag reinforcement strip;

each bag reinforcement strip traversing the paper bag surface from one paper bag handle, traversing the bag from one handle side to and across the bag bottom surface, progressing to the opposite side surface, and coupling with the opposite side handle;

using water repellant torrofacted paper material for reinforcement strips for protection against bag water damage, and

coupling the at least one bag reinforcement strip adhering to the bag surface from handle to handle

whereby a paper bag having reinforcement strips forming a loop from at least one reinforcement strip coupling the two handles and traversing the bag sides and bottom adding carrying capacity to the bag.

8. A method for reinforced bag as in claim 7 further comprising the steps of configuring a reinforcement strip in a continuous loop forming two opposing handles continually connecting a reinforced strip traversing and adhering to the bag surface from handle to handle.

9. A method for a reinforced paper bag as in claim 7 further comprising the steps of using reinforcement strip material selected from a set of strip materials comprising folded strength enhanced paper, threaded paper, cloth blend, cloth paper, wax paper, tape, ribbon, kraft paper, reinforced twisted, folded paper and biodegradable plastic.

10. A method for a reinforced bag as in claim 7 further comprising the steps of coupling the reinforcement strip to the bag from a group of coupling mechanisms comprising thread, staples, staple, acrylic varnish and glues of all types.

11. A method for a reinforced bag as in claim 7 further comprising the steps of providing bag handles made of material from a group consisting reinforced paper, folded paper, ribbon, composite paper, thread, cloth paper composite, reinforced twisted fiber, ribbon and cloth.

12. A method for a reinforced bag as in claim 7 further comprising the steps of placing a reinforcing strip traversing the bag bottom and perpendicular to the bag handle side reinforcing strips traversing the bag bottom.

References Cited (4)
US 1901858A · Fischer · 1933 [cited by examiner]
US 2980312A · Gould · 1961 [cited by examiner]
EP 0275239A2 · 1988 [cited by examiner]
GB 1071296A · 1967 [cited by examiner]
Cited By (1)
US 1,138,781