US3140833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling fixture
Assignee: Lightolier Inc
•
Filing: 1961-08-11
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Granted: 1964-07-14
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Woloski Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:40
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21V; F21V17/00; F21V17/10; F21V17/16; F21V17/164; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A LIGHTING FIXTURE COMPRISING A HOUSING HAVING A PAIR OF SIDE WALLS, A SUPPORT BRACKET AT THE LOWER EDGE OF EACH OF SAID SIDE WALLS, EACH OF SAID BRAKETS HAVING A CHANNEL PORTION OPEN AT ONE SIDE THEREOF AND OPPOSED TO EACH OTHER, EACH OF SAID CHANNEL PORTIONS HAVING A LOWER SUPPORTING SURFACE, THE INNER EDGE OF EACH OF SAID SUPPORTING SURFACES HAVING A DOWNWARDLY AND OUTWARDLY EXTENDING FLANGE, RESILIENT MEANS IN AT LEAST ONE OF SAID CHANNEL PORTIONS AND NORMALLY STRESSED TO EXERT AN INWARDLY DIRECTED FORCE TOWARD THE OTHER CHANNEL PORTION, A SUBSTANTIALLY RECTANGULAR TRANSLUCENT LIGHT DIFFUSING PANEL, SAID PANEL HAVING A SIDE MEMBER RISING FROM EACH OF TWO OPPOSED EDGES THEREOF, SAID SIDE MEMBERS BEING INCLINED TOWARD EACH OTHER, THE UPPER EDGE OF EACH OF SAID SIDE MEMBERS HAVING A SUPPORT LIP WHICH EXTENDS OUTWARDLY BEYOND THE ASSOCIATED EDGE OF SAID PANEL, THE OUTER EXTREMITIES OF SAID LIPS RESTING ON AN ASSOCIATED LOWER SUP-
Claim 2
Dependent Claim
157 words
A LIGHTING FIXTURE COMPRISING A HOUSING HAVING A PAIR OF SIDE WALLS, A SUPPORT BRACKET AT THE LOWER EDGE OF EACH OF SAID SIDE WALLS, EACH OF SAID BRAKETS HAVING A CHANNEL PORTION OPEN AT ONE SIDE THEREOF AND OPPOSED TO EACH OTHER, EACH OF SAID CHANNEL PORTIONS HAVING A LOWER SUPPORTING SURFACE, THE INNER EDGE OF EACH OF SAID SUPPORTING SURFACES HAVING A DOWNWARDLY AND OUTWARDLY EXTENDING FLANGE, RESILIENT MEANS IN AT LEAST ONE OF SAID CHANNEL PORTIONS AND NORMALLY STRESSED TO EXERT AN INWARDLY DIRECTED FORCE TOWARD THE OTHER CHANNEL PORTION, A SUBSTANTIALLY RECTANGULAR TRANSLUCENT LIGHT DIFFUSING PANEL, SAID PANEL HAVING A SIDE MEMBER RISING FROM EACH OF TWO OPPOSED EDGES THEREOF, SAID SIDE MEMBERS BEING INCLINED TOWARD EACH OTHER, THE UPPER EDGE OF EACH OF SAID SIDE MEMBERS HAVING A SUPPORT LIP WHICH EXTENDS OUTWARDLY BEYOND THE ASSOCIATED EDGE OF SAID PANEL, THE OUTER EXTREMITIES OF SAID LIPS RESTING ON AN ASSOCIATED LOWER SUP-
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |