Fastener means for loose leaf holders
Abstract
Abstract A FASTENER MEANS FOR TEMPORARILY INSERTING INDIVIDUAL LEAVES INTO A LOOSE LEAF HOLDER. THE MEANS COMPRISES (1) A LEAF OR INSERT HAVING ATTACHED THERETO AN INSERT GRIPPING MEANS ALONG AT LEAST A PORTION OF ONE EDGE, (2) AN ATTACHMENT PIN IN THE SHAPE OF A T ANCHORED BY ITS CROSSBAR IN THE FREE END OF THE INSERT MEANS AND WITH ITS CENTRAL SHAFT EXTENDING OUT FROM THE INSERT MEANS, (3) A BACKING MEANS ADAPTED TO PERMIT PENETRATION OF ITS RESILIENT SURFACE BY THE CENTRAL SHAFT OF THE T-SHAPED ATTACHMENT PIN. THE CENTRAL SHAFT OF THE ATTACHMENT PIN MAY BE ANGULARLY DISTORTED TO ENABLE IT TO BE MORE FIRMLY RETAINED WITHIN THE GRASP OF THE RESILIENT SURFACE WHICH IT PENETRATES. THE FASTENER MEANS BINDS THE LEAF INTO A HOLDER FORMED BY THE JOINDER OF THE FRONT AND BACK RECTANGULAR COVERS WITH THE BACKING MEANS. THE BACKING MEANS MAY BE COVERED ON ITS INTERIOR FACE WITH A FREE WIRE MESH SCREEN TO ASSIST IN THE FIXATION OF THE ATTACHMENT PINS TO THE BACKING MEANS.
Inventors
- 👤 Dwight L Wardell
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |