US4400107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension files and binders
Assignee: Dennison Manufacturing Co
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Filing: 1981-01-29
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Granted: 1983-08-23
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Expires: 2001-01-29
Abstract
Abstract File folders of the type having hooks to permit suspension for storage, and further including appendages to permit binding or compartmentalization of materials. The folder may contain loose-leaf binding rings, permanently or detachably mounted to the base. Alternatively, the folders are perforated at the base to hold a spiral binder for materials. The folders can be provided with telescoping side members to achieve an accordion-like effect. Such folders may additionally include permanent or removable divider panels.
Inventors
- 👤 Warren R. Pitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:59
CPC Classifications
B; B42; B42F; B42F15/00; B42F15/0011; B42F15/0052; B42F15/0058; B42F13/00; B42F13/16; B42F13/20; B42F13/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
152 words
An improved suspension file folder of the type including a base, a plurality of leaves attached to the base, and at least one hook attached to said leaves in order to suspend the folder from a carrier member, in which the improvement comprises a binder for the document comprising: a platform of dimensions compatible with the base of said folder, said platform having a hinge at one end; a plurality of rings mounted on one face of said platform to engage documents; and a backing member pivotally attached to said platform at the hinge, said backing member having a clip to engage said platform at an end opposite said hinge, wherein said platform is inserted within said file folder at the base so that a face of said platform opposite said rings rests against the base, and said backing member is secured to said platform with the base of said folder therebetween.
Claim 2
Dependent Claim
152 words
An improved suspension file folder of the type including a base, a plurality of leaves attached to the base, and at least one hook attached to said leaves in order to suspend the folder from a carrier member, in which the improvement comprises a binder for the document comprising: a platform of dimensions compatible with the base of said folder, said platform having a hinge at one end; a plurality of rings mounted on one face of said platform to engage documents; and a backing member pivotally attached to said platform at the hinge, said backing member having a clip to engage said platform at an end opposite said hinge, wherein said platform is inserted within said file folder at the base so that a face of said platform opposite said rings rests against the base, and said backing member is secured to said platform with the base of said folder therebetween.
Claim 3
Dependent Claim
45 words
An improved suspension file folder as defined in claim 1, wherein each of said rings comprises a pair of arcuate prongs having a ball at one end, wherein the ball of each arcuate prong is closely fitted to a complementary cavity in said binder appendage.
Claim 4
Dependent Claim
29 words
The improved suspension file folder of claim 2 wherein the ball of said prong includes an axially oriented slot which is fitted to a rib protruding into said cavity.
Claim 5
Dependent Claim
113 words
An improved suspension file folder of the type including a base, a plurality of leaves attached to the base, and at least one hook attached to said leaves in order to suspend the folder from a carrier member, in which the improvement comprises a binder for documents comprising: a binder appendage; a plurality of rings mounted on said binder appendage to engage documents, wherein each of said rings comprises a pair of arcuate prongs having a ball at one end, and wherein the ball of each arcuate prong is closely fitted to a complementary cavity in said binder appendage; and means for attaching said binder appendage to the base of said file folder.
Claim 6
Dependent Claim
113 words
An improved suspension file folder of the type including a base, a plurality of leaves attached to the base, and at least one hook attached to said leaves in order to suspend the folder from a carrier member, in which the improvement comprises a binder for documents comprising: a binder appendage; a plurality of rings mounted on said binder appendage to engage documents, wherein each of said rings comprises a pair of arcuate prongs having a ball at one end, and wherein the ball of each arcuate prong is closely fitted to a complementary cavity in said binder appendage; and means for attaching said binder appendage to the base of said file folder.
Claim 7
Dependent Claim
29 words
The improved suspension file folder of claim 4 wherein the ball of said prong includes an axially oriented slot which is fitted to a rib protruding into said cavity.
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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |