US3700264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book having subdivisions and means to locate the first leaf of each subdivision
Assignee: CAREY PRESS CORP
•
Filing: 1970-11-02
•
Granted: 1972-10-24
•
Expires: 1990-11-02
Abstract
Abstract A book having a plurality of subdivisions which consist of a varying number of leaves. Reference leaves are located at the front and back of the book and flank the subdivisions. All the leaves are the same width except those which precede the first leaf of a subdivision, these are narrower. As a result of the above construction a person can thumb through the book and as he does so there will be a slight pause in the passage (flexing) of leaves past his thumb as each narrower leaf slips beneath his thumb and momentarily rests on the first leaf of the following subdivision for the period of the pause. This enables a user to more rapidly locate and stop at the first page of any desired subdivision.
Inventors
- 👤 Arthur S Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:27
CPC Classifications
B; B42; B42F; B42F21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A book having indexing means, said book comprising a number of subdivisions, a plurality of leaves in each subdivision, each leaf having a first edge and a second edge, means for binding together the first edges of said leaves, each leaf in each subdivision being imperforate adjacent the second edge of said leaf, the second edge of each leaf being parallel to the bound first edge thereof and being free and rectilinear, the first page of the first leaf of each subdivision having indexing indicia thereon uniquely indicative of that subdivision, said indicia being disposed adjacent the second edge thereof, the distance between the first edge and the second edge of only the leaf of a given subdivision which precedes the first leaf in a following subdivision being less than the distance between the second edge and the first edge of the other leaves in the given subdivision, whereby when a person thumbs through the book there will be a slight pause in the flexing of the leaves past his thumb as each narrower leaf reaches his thumb and momentarily rests on the first leaf of the following subdivision for the period of the pause so that the first leaf of any subdivision can be rapidly located.
Claim 2
Dependent Claim
207 words
A book having indexing means, said book comprising a number of subdivisions, a plurality of leaves in each subdivision, each leaf having a first edge and a second edge, means for binding together the first edges of said leaves, each leaf in each subdivision being imperforate adjacent the second edge of said leaf, the second edge of each leaf being parallel to the bound first edge thereof and being free and rectilinear, the first page of the first leaf of each subdivision having indexing indicia thereon uniquely indicative of that subdivision, said indicia being disposed adjacent the second edge thereof, the distance between the first edge and the second edge of only the leaf of a given subdivision which precedes the first leaf in a following subdivision being less than the distance between the second edge and the first edge of the other leaves in the given subdivision, whereby when a person thumbs through the book there will be a slight pause in the flexing of the leaves past his thumb as each narrower leaf reaches his thumb and momentarily rests on the first leaf of the following subdivision for the period of the pause so that the first leaf of any subdivision can be rapidly located.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |