US3719974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral one-piece key ring or locking ring
Assignee: Individual
•
Filing: 1971-03-04
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Granted: 1973-03-13
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Expires: 1991-03-04
Abstract
Abstract The invention comprises a locking ring molded of plastic material. The ring is molded in a single piece which provides a free arm on which the articles, such as keys, can be hung. The body is provided with a groove or passageway into which the free arm can be slipped. A projection on the body enters a notch on the arm to releasably lock the arm in position to hold the keys on the ring. By lifting the arm away from the projection, the arm is released and can be swung into open position. The ring is molded so that the completed item comes from the mold and requires no further assembly operation.
Inventors
- 👤 H Cary
- 👤 R Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:57
CPC Classifications
A; A44; A44B; A44B15/00; F; F16; F16B; F16B45/00; F16B45/005; F16B45/008; F16B45/02; F16B45/036; Y; Y10; Y10S; Y10S24/00; Y10S24/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
An integral one-piece locking ring formed from resilient plastic material adapted to be employed as a key ring, said ring having a substantially flat base, an elongated arm extending integrally from one end of said base and lying in the plane of said base, said arm having an elongated portion terminating after a sharp bend in a short free end extending toward said base and adapted to releasably engage a projection extending integrally from said base, said projection being engageable with a notch formed adjacent said free end, said projection lying in the plane of said base, a ledge extending integrally from one side edge of said base away from said base and lying in a plane parallel to the plane of said base so as to underlie said first-mentioned projection, integral means secured to the opposite side edge of said base and positioned opposite said last-mentioned projection and extending in a plane parallel to the plane of said base and having a portion thereof extending perpendicular to the plane of said base and there-across so as to provide means for guiding said free end of said elongated arm so that said notch may be engaged in said first mentioned projection so as to retain said free end of said arm in locked position.
Claim 2
Dependent Claim
214 words
An integral one-piece locking ring formed from resilient plastic material adapted to be employed as a key ring, said ring having a substantially flat base, an elongated arm extending integrally from one end of said base and lying in the plane of said base, said arm having an elongated portion terminating after a sharp bend in a short free end extending toward said base and adapted to releasably engage a projection extending integrally from said base, said projection being engageable with a notch formed adjacent said free end, said projection lying in the plane of said base, a ledge extending integrally from one side edge of said base away from said base and lying in a plane parallel to the plane of said base so as to underlie said first-mentioned projection, integral means secured to the opposite side edge of said base and positioned opposite said last-mentioned projection and extending in a plane parallel to the plane of said base and having a portion thereof extending perpendicular to the plane of said base and there-across so as to provide means for guiding said free end of said elongated arm so that said notch may be engaged in said first mentioned projection so as to retain said free end of said arm in locked position.
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |