Patent US3281907A successfully refreshed from Google Patents.
US3281907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient locking fasteners
Assignee: —
•
Filing: —
•
Granted: 1966-11-01
•
Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:33
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/241; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/44932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A RESILIENT LOCKING FASTENER COMPRISING A UNITARY ONE-PIECE GENERALLY STRAIGHT LEAF SPRING HAVING A CENTRAL PORTION WITH A LOCKING APERTURE FOR RESILIENT, TILTABLE LOCKING ENGAGEMENT OF SAID FASTENER BY SAID CENTRAL PORTION UPON AN ANCHOR PIN, FINGER-GRIP AND CLAMPING PORTIONS PROJECTING LATERALLY FROM SAID CENTRAL PORTION ON OPPOSITE SIDES OF SAID APERTURE, SAID FINGERGRIP AND CLAMPING PORTIONS BEING ANGULATED WITH RESPECT TO THE PLANE OF SAID CENTRAL PORTION, SAID CLAMPING PORTION BEING BIFURCATED AND HAVING PARALLEL FURCATIONS WITH CONVEX CLAMPING SURFACES, SAID FURCATIONS BEING SUFFICIENTLY SPACED AND OF SUFFICIENT LENGTH FOR EMBRACING THEREBETWEEN A SHAFT AND WITH SAID CLAMPING SURFACES ENGAGING AND APPLYING AN AXIAL THRUST TO A MEMBER SLIDABLY MOUNTED UPON SAID SHAFT.
Claim 2
Dependent Claim
114 words
A RESILIENT LOCKING FASTENER COMPRISING A UNITARY ONE-PIECE GENERALLY STRAIGHT LEAF SPRING HAVING A CENTRAL PORTION WITH A LOCKING APERTURE FOR RESILIENT, TILTABLE LOCKING ENGAGEMENT OF SAID FASTENER BY SAID CENTRAL PORTION UPON AN ANCHOR PIN, FINGER-GRIP AND CLAMPING PORTIONS PROJECTING LATERALLY FROM SAID CENTRAL PORTION ON OPPOSITE SIDES OF SAID APERTURE, SAID FINGERGRIP AND CLAMPING PORTIONS BEING ANGULATED WITH RESPECT TO THE PLANE OF SAID CENTRAL PORTION, SAID CLAMPING PORTION BEING BIFURCATED AND HAVING PARALLEL FURCATIONS WITH CONVEX CLAMPING SURFACES, SAID FURCATIONS BEING SUFFICIENTLY SPACED AND OF SUFFICIENT LENGTH FOR EMBRACING THEREBETWEEN A SHAFT AND WITH SAID CLAMPING SURFACES ENGAGING AND APPLYING AN AXIAL THRUST TO A MEMBER SLIDABLY MOUNTED UPON SAID SHAFT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |