US3720366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book folder
Assignee: Stone Container Corp
•
Filing: 1971-02-16
•
Granted: 1973-03-13
•
Expires: 1991-02-16
Abstract
Abstract A folder for books and the like includes a sleeve having top and bottom panels connected by side wall panels. Closure panels are connected to at least one of the top and bottom panels. The ends of the side wall panels and tabs connected to the top panel form right angular projections extending beyond the end closure.
Inventors
- 👤 D Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:48
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/04; B65D75/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
A folder for books and the like including: a tubular rectangular sleeve including top, bottom and side wall panels, tabs integral with said bottom panel projecting beyond the ends of said top and bottom panels adjoining the side wall panels, said side wall panels extending beyond the ends of said top and bottom panels and hingedly connected to said tabs, end closure panels hinged to the ends of said top and bottom panels and secured in right angular relation to said top and bottom panels, the end closure panels connected to said bottom panel having upper portions engaging the inner surfaces of the side wall panels, the ends of said side walls and the tabs connected thereto comprising right angular projections from the ends of the folder.
Claim 2
Dependent Claim
127 words
A folder for books and the like including: a tubular rectangular sleeve including top, bottom and side wall panels, tabs integral with said bottom panel projecting beyond the ends of said top and bottom panels adjoining the side wall panels, said side wall panels extending beyond the ends of said top and bottom panels and hingedly connected to said tabs, end closure panels hinged to the ends of said top and bottom panels and secured in right angular relation to said top and bottom panels, the end closure panels connected to said bottom panel having upper portions engaging the inner surfaces of the side wall panels, the ends of said side walls and the tabs connected thereto comprising right angular projections from the ends of the folder.
Claim 3
Dependent Claim
127 words
A folder for books and the like including: a tubular rectangular sleeve including top, bottom and side wall panels, tabs integral with said bottom panel projecting beyond the ends of said top and bottom panels adjoining the side wall panels, said side wall panels extending beyond the ends of said top and bottom panels and hingedly connected to said tabs, end closure panels hinged to the ends of said top and bottom panels and secured in right angular relation to said top and bottom panels, the end closure panels connected to said bottom panel having upper portions engaging the inner surfaces of the side wall panels, the ends of said side walls and the tabs connected thereto comprising right angular projections from the ends of the folder.
Claim 4
Dependent Claim
127 words
A folder for books and the like including: a tubular rectangular sleeve including top, bottom and side wall panels, tabs integral with said bottom panel projecting beyond the ends of said top and bottom panels adjoining the side wall panels, said side wall panels extending beyond the ends of said top and bottom panels and hingedly connected to said tabs, end closure panels hinged to the ends of said top and bottom panels and secured in right angular relation to said top and bottom panels, the end closure panels connected to said bottom panel having upper portions engaging the inner surfaces of the side wall panels, the ends of said side walls and the tabs connected thereto comprising right angular projections from the ends of the folder.
Claim 5
Dependent Claim
27 words
The structure of claim 1 and including anchoring panels hinged to the closure panel on said bottom panel and secured in face contact to said top panel.
Claim 6
Dependent Claim
27 words
The structure of claim 1 and including a reinforcing panel hinged to said end closure panel secured to said top panel and folded into face contact therewith.
Claim 7
Dependent Claim
22 words
The structure of claim 1 and in which said bottom panel includes a pair of partial bottom panels secured in overlapping relation.
Claim 8
Dependent Claim
32 words
The structUre of claim 4 and in which the end closure panels hinged to said bottom panel comprise partial end panels connected to said partial bottom panels and secured in overlapping relation.
Claim 9
Dependent Claim
24 words
The structure of claim 5 and including anchoring panels hinged to said partial end panels and secured in overlapping relation to said top panel.
References Cited (Backward Citations)
US1414236A
Cited
US2070747A
Cited
US2398404A
Cited
US3325964A
Cited
US3383028A
Cited
US3441195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |