Patent US3528895A successfully refreshed from Google Patents.
Patent US3936202A successfully refreshed from Google Patents.
US3936202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring binder
Assignee: Individual
•
Filing: 1975-02-24
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Granted: 1976-02-03
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Expires: 1995-02-24
Abstract
Abstract A loose leaf ring binder has a support for holding up the inner edges of the loose leaf sheets on that side of the rings on which it would be difficult to write. The support is a flat relatively rigid sheet that is swingably connected at its inner or outer edge to one of the binder covers, so that the inclination of the support can be adjusted. Means are provided for maintaining the selected inclination of the support, in the form of a series of teeth on the adjacent outer cover with means on the support selectively engaging with the teeth to adjust the position of the support so as to bring the inner edge of the supported loose leaf substantially level with the rings. The cover can be quite narrow, in the form of a flexible strap secured at one end to the spine of the binder and coacting with the support at its other end.
Inventors
- 👤 Peter Brajituli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:20
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/40; B42F13/408
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
A ring binder comprising a pair of covers, a plurality of rings carried by the binder for retaining punched pages thereon between the covers, an outer spine disposed between and swingably connected to both of said covers, an inner spine overlying said outer spine when said binder is opened flat, said inner spine being pivotably connected to said binder at one edge, a support on at least one a substantially rigid sheet swingably connected at one of its edges to the other edge of said inner spine and free at its opposite edge, said rings being mounted on said inner spine, and means to adjust the elevation of the inner edge of said support relative to the rings whereby when the covers of the binder are open, the inner edges of pages resting on the first-mentioned inner edge will be at about the same level as the upper portions of the rings, said adjusting means comprising a series of teeth on the inner side of one said cover, said series extending in a direction perpendicular to said edges, and a detent on said free edge of said sheet and selectively edngageable between any adjacent pair of said teeth.
Claim 2
Dependent Claim
198 words
A ring binder comprising a pair of covers, a plurality of rings carried by the binder for retaining punched pages thereon between the covers, an outer spine disposed between and swingably connected to both of said covers, an inner spine overlying said outer spine when said binder is opened flat, said inner spine being pivotably connected to said binder at one edge, a support on at least one a substantially rigid sheet swingably connected at one of its edges to the other edge of said inner spine and free at its opposite edge, said rings being mounted on said inner spine, and means to adjust the elevation of the inner edge of said support relative to the rings whereby when the covers of the binder are open, the inner edges of pages resting on the first-mentioned inner edge will be at about the same level as the upper portions of the rings, said adjusting means comprising a series of teeth on the inner side of one said cover, said series extending in a direction perpendicular to said edges, and a detent on said free edge of said sheet and selectively edngageable between any adjacent pair of said teeth.
Claim 3
Dependent Claim
21 words
A binder as claimed in claim 1, said sheet being pivotally connected to said binder at its edge adjacent said rings.
Claim 4
Dependent Claim
34 words
A binder as claimed in claim 1, and means engageable with the free edge of the other said cover releasably to retain said sheet and said other cover closed with said pages between them.
Claim 5
Dependent Claim
18 words
A binder as claimed in claim 1, said rings opening and closing to release and retain said pages.
References Cited (Backward Citations)
GB190915890A
Cited
US1840743A
Cited
DE679876C
Cited
US2613956A
Cited
US2739826A
Cited
US3620553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |