Patent US3049701A successfully refreshed from Google Patents.
US3748701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive element in cloth form
Assignee: Velcro SA
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Filing: 1971-04-08
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Granted: 1973-07-31
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Expires: 1991-04-08
Abstract
Abstract A fastening member is disclosed for use in a separable fastening device of the type including two fastening members each having an engaging surface defined by a plurality of hooking elements. At least one of the members comprises a base sheet having a plurality of resilient threads in the form of arches secured to the base sheet and extending from one surface thereof. The threads are of unitary construction and include a core portion and at least one lobe extending from the core. Each of the lobes include a plurality of serrated notches which define a multiplicity of hook-type hooking elements along each of the lobes.
Inventors
- 👤 Mestral G De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/253; A; A44; A44B; A44B18/00; A44B18/0023; A44B18/0038; D01D4/00; D01D4/02; D03; D03D; D03D27/00; Y; Y10; Y10T; Y10T24/00; Y10T24/27; Y10T24/2733; Y10T24/2767; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
88 words
A fastening member for a separable type fastener comprising a base sheet, a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in crosssection and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
Claim 2
Dependent Claim
88 words
A fastening member for a separable type fastener comprising a base sheet, a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in crosssection and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
Claim 3
Dependent Claim
18 words
A flexible fastening member according to claim 1 wherein the threads have three lobes extending from the core.
Claim 4
Dependent Claim
20 words
A flexible fastening member according to claim 1 wherein each lobe extends from the core at substantially the same distance.
Claim 5
Dependent Claim
18 words
A flexible fastening member according to claim 1 wherein the base sheet is formed of woven synthetic material.
Claim 6
Dependent Claim
23 words
A flexible fastening member according to claim 4 wherein the threads are formed of a synthetic resin material interwoven in the base sheet.
Claim 7
Dependent Claim
20 words
A flexible fastening member according to claim 1 wherein the notches are spaced at substantially reGular intervals along each lobe.
Claim 8
Dependent Claim
33 words
A flexible fastening member according to claim 1 wherein the notches are distributed along each lobe in a manner which forms a spiral formation of the notches along the length of the threads.
Claim 9
Dependent Claim
17 words
A fastening member according to claim 1 wherein the base sheet is formed of a solid material.
Claim 10
Dependent Claim
117 words
A separable fastening device of the type including first and second fastening members each member having an engaging surface defined by a plurality of hooking elements of flexible resilient material, at least the first of the members comprising a base sheet; a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in cross-section and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
Claim 11
Dependent Claim
117 words
A separable fastening device of the type including first and second fastening members each member having an engaging surface defined by a plurality of hooking elements of flexible resilient material, at least the first of the members comprising a base sheet; a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in cross-section and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
Claim 12
Dependent Claim
25 words
A separable fastening device according to claim 9 wherein the second member comprises a base sheet and a multiplicity of loop-type hooking elements projecting therefrom.
Claim 13
Dependent Claim
18 words
A separable fastening device according to claim 9 wherein the threads have three lobes extending from the core.
Claim 14
Dependent Claim
110 words
A separable fastening device of the type including two fastening members each member having an engaging surface defined by a plurality of hooking elements of flexible resilient material, each member comprising a base sheet, a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in cross-section and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
Claim 15
Dependent Claim
110 words
A separable fastening device of the type including two fastening members each member having an engaging surface defined by a plurality of hooking elements of flexible resilient material, each member comprising a base sheet, a plurality of resilient threads in the form of arches secured to the base sheet and projecting from one surface thereof, substantially each thread being of unitary construction and including a core portion substantially circular in cross-section and at least one rib-like lobe integrally extending from the core portion substantially the entire length of the thread, each lobe including a plurality of notches defining a multiplicity of hook-like hooking elements along the length of each lobe.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |