US3734634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loose leaf binder
Assignee: Individual
•
Filing: 1970-06-05
•
Granted: 1973-05-22
•
Expires: 1990-06-05
Abstract
Abstract A looseleaf binder having front and rear covers slidably connected so that the covers may undergo limited movement relative to each other to facilitate access to the sheets confined therebetween without releasing said sheets, said covers having angular overlapping back members carrying mounting means for said sheets, and confining means comprising a channel at least at one end of one of the back members, means on one of said members slidable in the channel, a flexible detachable or hinged latch securing said back members to each other without interfering with relative movement of said covers; and means preventing endwise displacement of the slidable means from the channel.
Inventors
- 👤 W Fenston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:15
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/16; B42F13/20; B42F13/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
290 words
A loose leaf binder including front and rear covers, each having a hinged section at one end thereof, each section having an inner hinged edge and an opposite outer edge coacting post means extending transversely between saId hinged sections of the covers in overlapping relationship, complementary back members extending transversely of and connected to said outer edges of said covers in overlapping relation to each other, means at the ends of one of the back members for slidably confining the ends of the other back member and permitting transverse movement of said members relative to each other to vary the distance between said hinged sections, the slidable confining means comprising inwardly facing narrow channel means at least at one end of and extending transversely of one of said back members and having an outer flange connected to and forming an extension of said one end of said member and an inner flange hinged to the outer flange for movement between an open position and an overlapping closed position in which the outer flange and inner flange are in closely spaced parallel relation to define a narrow channel, an extension at least at one end of the slidably confined back member projecting into the channel, latch means including a flange integral with and at one end of said inner flange and adapted to extend across one end of said narrow channel in said closed position of said inner and outer flanges for preventing disengagement of the extension from said channel means and separation of said back members without interfering with limited relative movement thereof, said latch means having means for engaging said outer flange for releasably securing the hinged flange in parallel relation to the outer flange in said closed position.
Claim 2
Dependent Claim
290 words
A loose leaf binder including front and rear covers, each having a hinged section at one end thereof, each section having an inner hinged edge and an opposite outer edge coacting post means extending transversely between saId hinged sections of the covers in overlapping relationship, complementary back members extending transversely of and connected to said outer edges of said covers in overlapping relation to each other, means at the ends of one of the back members for slidably confining the ends of the other back member and permitting transverse movement of said members relative to each other to vary the distance between said hinged sections, the slidable confining means comprising inwardly facing narrow channel means at least at one end of and extending transversely of one of said back members and having an outer flange connected to and forming an extension of said one end of said member and an inner flange hinged to the outer flange for movement between an open position and an overlapping closed position in which the outer flange and inner flange are in closely spaced parallel relation to define a narrow channel, an extension at least at one end of the slidably confined back member projecting into the channel, latch means including a flange integral with and at one end of said inner flange and adapted to extend across one end of said narrow channel in said closed position of said inner and outer flanges for preventing disengagement of the extension from said channel means and separation of said back members without interfering with limited relative movement thereof, said latch means having means for engaging said outer flange for releasably securing the hinged flange in parallel relation to the outer flange in said closed position.
Claim 3
Dependent Claim
39 words
A loose leaf binder as defined in claim 1 wherein at least a portion of said channel means is formed of a material sufficiently flexible to facilitate movement of said inner flange into and out of channel forming position.
Claim 4
Dependent Claim
51 words
A loose leaf binder as defined in claim 1 wherein the slidable confining means has at least a major portion thereof disposed outwardly of the end margin of the back member upon which it is mounted so as to minimize interference with the contents of the binder and relative movement thereof.
Claim 5
Dependent Claim
32 words
A loose leaf binder as defined in claim 1 wherein the means for releasably securing said inner flange in channel forming position comprises an angular latch adapted to engage said outer flange.
References Cited (Backward Citations)
US758292A
Cited
US2472969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |