Patent US3756627A successfully refreshed from Google Patents.
US3756627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book-like product and method for opening and stuffing same with an insert
Assignee: Ferag AG
•
Filing: 1971-12-29
•
Granted: 1973-09-04
•
Expires: 1991-12-29
Abstract
Abstract A book-like product composed of flexible sheets, with given ones of the sheets having indexing means at predetermined index locations of the product for reducing the friction between each two sheets bounding a respective index locations. The indexing means reduces the friction at a zone of the surface of the relevant sheet, and each such reduced friction zone is arranged to be at least partially free of overlapping with regard to the remaining reduced friction zones. There is also disclosed a method of opening such book-like products wherein the product is engaged at the region of one of the reduced friction zones, the sheets of the product are displaced relative to one another at the relevant index location, thereby opening the product at such index location, thereafter an insert is introduced into such index location, and then such operations are repeated at a different reduced friction zone of the product.
Inventors
- 👤 W Reist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:55
CPC Classifications
B; B42; B42F; B42F21/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
76 words
A book-like product composed of flexible sheets and containing predetermined index locations, indexing means provided for given ones of said sheets at said predetermined index locations for reducing the friction between each two sheets bounding a respective index location, said indexing means reducing the friction at a zone of the surface of the relevant sheet, said reduced friction zone being arranged to be at least partially free of portions which overlap the remaining reduced friction zones.
Claim 2
Dependent Claim
76 words
A book-like product composed of flexible sheets and containing predetermined index locations, indexing means provided for given ones of said sheets at said predetermined index locations for reducing the friction between each two sheets bounding a respective index location, said indexing means reducing the friction at a zone of the surface of the relevant sheet, said reduced friction zone being arranged to be at least partially free of portions which overlap the remaining reduced friction zones.
Claim 3
Dependent Claim
26 words
The product as defined in claim 1, further including marker means for visibly portraying at least a part of these reduced friction zones at another sheet.
Claim 4
Dependent Claim
31 words
The product as defined in claim 2, wherein said marker means for visibly portraying at least part of the reduced friction zones are provided at a cover sheet of the product.
Claim 5
Dependent Claim
25 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones bounds at least one cut edge of the product.
Claim 6
Dependent Claim
21 words
The product as defined in claim 2, wherein said visibly portrayed zones bound at least one cut edge of the product.
Claim 7
Dependent Claim
20 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones incorporates a dry lubricant.
Claim 8
Dependent Claim
20 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones comprises a glossy material.
Claim 9
Dependent Claim
20 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones comprises a plastic material.
Claim 10
Dependent Claim
36 words
The product as defined in claim 2, wherein said indexing means forming said visibly portrayed zones bound at least a cut edge of the product, and wherein said visibly portrayed zones are coated with a material.
Claim 11
Dependent Claim
15 words
The product as defined in claim 9, wherein said coating material is a glossy material.
Claim 12
Dependent Claim
14 words
The product as defined in claim 9, wherein said coating material is a plastic.
Claim 13
Dependent Claim
25 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones comprises both a dry lubricant and a coating material.
Claim 14
Dependent Claim
15 words
The product as defined in claim 12, wherein said coating material comprises a glossy material.
Claim 15
Dependent Claim
14 words
The product as defined in claim 12, wherein said coating material comprises a plastic.
Claim 16
Dependent Claim
47 words
The product as defined in claim 1, wherein said indexing means forming said reduced friction zones bounds at least one cut edge of the product, and wherein said reduced friction zones possess an elongate configuration and extend obliquely with respect to said cut edge of said product.
Claim 17
Independent Claim
144 words
A method of opening book-like products of the type provided with means for reducing the friction between each two neighboring sheets defining a respective index location to which the product is to be opened, said means reducing the friction being provided at a zone of the surface of the relevant sheet of an index location, there being provided as many such zones as there are index locations of the product, the improvement comprising the steps of: engaging the product at the region of one of the reduced friction zones, displacing the sheets of the product relative to one another at the region of the relevant index location, thereby opening the product at such index location associated with said one reduced friction zone, thereafter introducing an insert into such index location, and then repeating such operations at a different reduced friction zone of the product.
Claim 18
Independent Claim
144 words
A method of opening book-like products of the type provided with means for reducing the friction between each two neighboring sheets defining a respective index location to which the product is to be opened, said means reducing the friction being provided at a zone of the surface of the relevant sheet of an index location, there being provided as many such zones as there are index locations of the product, the improvement comprising the steps of: engaging the product at the region of one of the reduced friction zones, displacing the sheets of the product relative to one another at the region of the relevant index location, thereby opening the product at such index location associated with said one reduced friction zone, thereafter introducing an insert into such index location, and then repeating such operations at a different reduced friction zone of the product.
References Cited (Backward Citations)
US2903277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |