US3345510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head light having ellipsoidal reflector
Assignee: Individual
•
Filing: 1964-12-28
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Granted: 1967-10-03
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Leah M Bone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:05
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/20; F21S41/25; F21S41/255; F21S41/10; F21S41/14; F21S41/162; F21S41/166; F21S41/168; F21S41/30; F21S41/32; F21S41/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A VEHICLE HEAD LAMP FOR PROJECTING A NATURAL ELLIPTICAL BEAM PATTERN HAVING A HORIZONTAL SPREAD WHICH IS SUBSTANTIALLY GREATER THAN ITS VERTICAL SPREAD AND COMPRISING, IN COMBINATION: A SUBSTANTIALLY ELLIPSOIDAL REFLECTOR HAVING FORWARD AND REAR FOCAL POINTS AND EXTENDING FORWARDLY OF THE REAR FOCAL POINT, A HORIZONTALLY ORIENTED LIGHT SOURCE IN THE FORM OF A FILAMENT LONG RELATIVE OT ITS WIDTH, SAID SOURCE BEING DISPOSED PERPENDICULAR TO THE AXIS OF THE REFLECTOR AND IN THE REGION OF SAID REAR FOCAL POINT, AND A LENS HAVING A FOCUS IN THE REGION OF SAID FORWARD FOCAL POINT, SAID REFLECTOR HAVING SUCH ECCENTRICITY AND THE LIGHT SOURCE BEING SO POSITIONED IN RELATION TO THE REFLECTOR THAT THE COMBINATION PRODUCES IN THE REGION OF SAID FORWARD FOCAL POINT AN IMAGE PATTERN HAVING THE PROPORTIONS
Claim 2
Dependent Claim
130 words
A VEHICLE HEAD LAMP FOR PROJECTING A NATURAL ELLIPTICAL BEAM PATTERN HAVING A HORIZONTAL SPREAD WHICH IS SUBSTANTIALLY GREATER THAN ITS VERTICAL SPREAD AND COMPRISING, IN COMBINATION: A SUBSTANTIALLY ELLIPSOIDAL REFLECTOR HAVING FORWARD AND REAR FOCAL POINTS AND EXTENDING FORWARDLY OF THE REAR FOCAL POINT, A HORIZONTALLY ORIENTED LIGHT SOURCE IN THE FORM OF A FILAMENT LONG RELATIVE OT ITS WIDTH, SAID SOURCE BEING DISPOSED PERPENDICULAR TO THE AXIS OF THE REFLECTOR AND IN THE REGION OF SAID REAR FOCAL POINT, AND A LENS HAVING A FOCUS IN THE REGION OF SAID FORWARD FOCAL POINT, SAID REFLECTOR HAVING SUCH ECCENTRICITY AND THE LIGHT SOURCE BEING SO POSITIONED IN RELATION TO THE REFLECTOR THAT THE COMBINATION PRODUCES IN THE REGION OF SAID FORWARD FOCAL POINT AN IMAGE PATTERN HAVING THE PROPORTIONS
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |