US3567315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-loaded hinge for spectacle frames and system for adjustment of temple angulation
Assignee: Individual
•
Filing: 1969-06-02
•
Granted: 1971-03-02
•
Expires: 1989-06-02
Abstract
Abstract A SPECTACLE TEMPLE IS PIVOTALLY CONNECTED TO A LENS SUPPORT FRAME BY A SPRING-LOADED HINGE. A RECESS IS FORMED IN THE OUTER END OF THE TEMPLE, AND AN INTEGRAL PROJECTION EXTENDS INTO THIS RECESS. A HINGE PLATE IS SLIDABLY SUPPORTED IN THE RECESS AND IS BIASED IN ONE DIRECTION BY A SPRING. THE HINGE PLATE HAS A SLOT WHICH RECEIVES THE PROJECTION. A COVER PLATE IS SECURED IN PLACE OVER THE HINGE PLATE WHICH, IN TURN, IS CONNECTED WITH THE LENS SUPPORT FRAME. IN CERTAIN FORMS OF THE INVENTION, ADJUSTMENT MEANS IS PROVIDED FOR SELECTIVELY PRESTRESSING THE SPRING AND THEREBY VARYING THE NORMAL ANGULATION OF THE TEMPLE WITH RESPECT TO THE LENS SUPPORT FRAME.
Inventors
- 👤 Frederick Speer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/22; G02C5/2218; G02C5/2236; G02C5/2245
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |