US3879804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neck strap
Assignee: BELLE FRANK GROUP 352 EAST EDINGER SANTA ANA CA 92705 A CORP OF
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Filing: 1974-10-07
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Granted: 1975-04-29
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Expires: 1994-10-07
Abstract
Abstract A neckstrap for supporting eyeglasses when not in use upon a wearer by engaging the temple elements of the frame thereof. The device is formed entirely or in substantial part of a synthetic resinous material having a durometer value ranging from 65 to 85, and includes an elongated strap member and a pair of orificed members through which the strap member is passed thereby forming looped ends which are tightened upon the frame of the eyeglass to be frictionally retained by the expansion of the strap member within a respective orifice. The device is also suitable for retaining goggles in adjustable operative position upon the head of a wearer. A second embodiment employs loops of synthetic resinous material in conjunction with a metallic loop retaining member.
Inventors
- 👤 Peter Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:18
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/003; G02C11/00; A; A45; A45F; A45F3/00; A45F2003/002; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1371; Y10T24/1374
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A neckstrap or similar article defining adjustable closed loops at each end thereof comprising: an elongated strap member formed at least partially from a resinous material of durometer value ranging from 65 to 85, at least one retaining member defining an opening through which one end of said strap member passes to form one of said closed loops; said strap member having an unstressed cross-sectional area which is slightly greater than the area of the corresponding opening in said retaining member, whereby said strap member is resiliently frictionally gripped therein; said loop formed thereby being adjustable by exerting tension upon said strap member to result in attenuating that portion of the strap member lying within said opening permitting relative motion there between, the release of tension serving to permit the attenuated portion to expand to be again retained in relatively fixed position.
Claim 2
Dependent Claim
142 words
A neckstrap or similar article defining adjustable closed loops at each end thereof comprising: an elongated strap member formed at least partially from a resinous material of durometer value ranging from 65 to 85, at least one retaining member defining an opening through which one end of said strap member passes to form one of said closed loops; said strap member having an unstressed cross-sectional area which is slightly greater than the area of the corresponding opening in said retaining member, whereby said strap member is resiliently frictionally gripped therein; said loop formed thereby being adjustable by exerting tension upon said strap member to result in attenuating that portion of the strap member lying within said opening permitting relative motion there between, the release of tension serving to permit the attenuated portion to expand to be again retained in relatively fixed position.
Claim 3
Dependent Claim
17 words
Structure in accordance with claim 1, including a pair of retaining members, one for each closed loop.
Claim 4
Dependent Claim
19 words
Structure in accordance with claim 1, in which said strap member and retaining members are formed from polyvinyl chloride.
Claim 5
Dependent Claim
22 words
Structure in accordance with claim 1, in which said retaining members are in the form of short lengths of spirally coiled wire.
Claim 6
Dependent Claim
16 words
Structure in accordance with claim 1, in which said loops are formed as endless integral units.
Claim 7
Dependent Claim
22 words
Structure in accordance with claim 1, in which said strap member and said openings in said retaining members are of rectangular configuration.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |