Patent US3650460A successfully refreshed from Google Patents.
US3650460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper bag
Assignee: GREAT PLAINS /SAMSON BAG CORP A CORP OF
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Filing: 1962-08-13
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Granted: 1972-03-21
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Expires: 1982-08-13
Abstract
Abstract A gusseted, multi-ply bag having a rear surface and gusset portions adhered to a front surface of the bag to form an end closure and a longitudinal seam formed by the longitudinal edges of each ply being bonded together in overlapped relation.
Inventors
- 👤 Burke P Lokey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:24
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
212 words
A gusseted multiwall bag formed from a continuous tube of plies of paper comprising: a. a tubular body portion b. a first end structure having i. a front wall, ii. a first gusset wall longitudinally connected to said front wall along a first longitudinal edge, iii. a second gusset wall longitudinally connected to said first gusset wall along a second longitudinal edge, and iv. a rear wall longitudinally connected to said second gusset wall, along a third longitudinal edge, v. the front wall being cut perpendicularly to and along the first longitudinal edge to expose an upper portion of the first gusset wall and forming a first step, vi. the first gusset wall being cut perpendicularly to and along the second longitudinal edge to expose an upper portion of the second gusset wall and forming a second step, vii. the second gusset wall being cut perpendicularly to and along the third longitudinal edge, to expose an upper portion of the rear wall and forming a third step, viii. the three steps being approximately equal in longitudinal length, and ix. the axis of closure of the end being substantially coincident with the upper edge of the front wall, and c. a second end structure similar to the reverse of the first end structure.
Claim 2
Dependent Claim
212 words
A gusseted multiwall bag formed from a continuous tube of plies of paper comprising: a. a tubular body portion b. a first end structure having i. a front wall, ii. a first gusset wall longitudinally connected to said front wall along a first longitudinal edge, iii. a second gusset wall longitudinally connected to said first gusset wall along a second longitudinal edge, and iv. a rear wall longitudinally connected to said second gusset wall, along a third longitudinal edge, v. the front wall being cut perpendicularly to and along the first longitudinal edge to expose an upper portion of the first gusset wall and forming a first step, vi. the first gusset wall being cut perpendicularly to and along the second longitudinal edge to expose an upper portion of the second gusset wall and forming a second step, vii. the second gusset wall being cut perpendicularly to and along the third longitudinal edge, to expose an upper portion of the rear wall and forming a third step, viii. the three steps being approximately equal in longitudinal length, and ix. the axis of closure of the end being substantially coincident with the upper edge of the front wall, and c. a second end structure similar to the reverse of the first end structure.
Claim 3
Dependent Claim
176 words
A bag of tubular form comprising a plurality of contiguous plies of flexible sheet material, said bag having a front surface and an oppositely disposed rear surface adapted to overlap said front surface at one end of said tube when said bag is in its assembled condition, said bag being longitudinally and reversely creased along diametrically opposed portions to provide a pair of oppositely disposed gussets interposed between said front and rear surfaces, each of said gussets having a front portion and a stepped rear portion adapted to overlap said front portion within the overlap area of said front and rear surfaces at said end of the tube when said bag is in its assembled condition, the longitudinal edges of said plies being successively and progressively stepped with the respective longitudinal edges of each ply being adherently bonded one to the other in overlapped relation, and said end of the tube including all of said overlapped portions and surfaces being folded against said front surface and selectively adhered in position to form said assembled bag end.
Claim 4
Dependent Claim
176 words
A bag of tubular form comprising a plurality of contiguous plies of flexible sheet material, said bag having a front surface and an oppositely disposed rear surface adapted to overlap said front surface at one end of said tube when said bag is in its assembled condition, said bag being longitudinally and reversely creased along diametrically opposed portions to provide a pair of oppositely disposed gussets interposed between said front and rear surfaces, each of said gussets having a front portion and a stepped rear portion adapted to overlap said front portion within the overlap area of said front and rear surfaces at said end of the tube when said bag is in its assembled condition, the longitudinal edges of said plies being successively and progressively stepped with the respective longitudinal edges of each ply being adherently bonded one to the other in overlapped relation, and said end of the tube including all of said overlapped portions and surfaces being folded against said front surface and selectively adhered in position to form said assembled bag end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |