Patent US3856064A successfully refreshed from Google Patents.
US3856064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open-topped foldable receptacle
Assignee: Individual
•
Filing: 1971-08-30
•
Granted: 1974-12-24
•
Expires: 1991-08-30
Abstract
Abstract An open-topped foldable receptacle comprising a piece of fluid impervious flexible sheet material folded to and fro and provided with transverse end seals so that at least three downwardly open folds are formed, and two longitudinal strips of stiff material attached to the folded piece to support its outer side walls. Said strips are preferably loosely mounted in pockets formed by the outer folds of the folded piece and the end seals.
Inventors
- 👤 S Swalleri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:38
CPC Classifications
B; B65; B65D; B65D37/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
138 words
An open-topped collapsible receptacle having a first collapsiblE position and a second extended position, said receptacle comprising in said first collapsed position: a. a single piece of fluid impervious sheet material i. said material having at least 3 downwardly opening parallel and longitudinal folds, with the first and third folds being folded outwardly and downwardly to the same level, said folded material defining first and second longitudinal ends. ii. at least two upwardly opening folds lying on either side of said center downwardly opening fold b. at least two transverse end seals sealing the first and second logitudinal ends of said folded material, said seals extending through all downwardly opening folds, c. at least one longitudinal strip of stiffening material positioned within said first and third folds, said strips extending from one longitudinal end seal to the other,
Claim 2
Dependent Claim
138 words
An open-topped collapsible receptacle having a first collapsiblE position and a second extended position, said receptacle comprising in said first collapsed position: a. a single piece of fluid impervious sheet material i. said material having at least 3 downwardly opening parallel and longitudinal folds, with the first and third folds being folded outwardly and downwardly to the same level, said folded material defining first and second longitudinal ends. ii. at least two upwardly opening folds lying on either side of said center downwardly opening fold b. at least two transverse end seals sealing the first and second logitudinal ends of said folded material, said seals extending through all downwardly opening folds, c. at least one longitudinal strip of stiffening material positioned within said first and third folds, said strips extending from one longitudinal end seal to the other,
Claim 3
Dependent Claim
25 words
An open-topped receptacle as set forth in claim 1, wherein said strips are loosely mounted in said outermost folds forming pockets for retaining said strips.
References Cited (Backward Citations)
US1601566A
Cited
US1623107A
Cited
US2676702A
Cited
US2766927A
Cited
US3220544A
Cited
US3187903A
Cited
US3261458A
Cited
US3586084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |