US3130922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated ceiling
Assignee: Motors Liquidation Co
•
Filing: 1961-04-19
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Granted: 1964-04-28
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Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Robert F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:07
CPC Classifications
F; F21; F21V; F21V3/00; F21S; F21S2/00; F21S8/00; F21S8/02; F21V17/00; F21V17/10; F21V17/16; F21V17/164; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A BUILDING STRUCTURE, AN ILLUMINATED CEILING COMPRISING, IN COMBINATION, A PAIR OF LONGITUDINAL SUPPORT MEMBERS, EACH INCLUDING AN ANGULARLY DIRECTED FLANGE, MEANS MOUNTING SAID SUPPORT MEMBERS ON SAID BUILDING STRUCTURE IN GENERALLY PARALLEL SPACED RELATIONSHIP WITH SAID FLANGES THEREOF BEING DIRECTED TOWARD EACH OTHER, A LIGHT SOURCE, A PAIR OF PAN MEMBERS OF LIGHT TRANSMITTING MATERIAL SPACED FROM SAID LIGHT SOURCE, EACH HAVING FIRST OPPOSITE SIDE WALLS EXTENDING ANGULARLY TO THE BASE WALLS THEREOF, AND SECOND OPPOSITE SIDE WALLS EXTENDING GENERALLY NORMAL TO THE BASE WALL THEREOF, MEANS REMOVABLY SECURING SAID FIRST WALLS TO SAID FLANGES OF SAID SUPPORT MEMBER TO LOCATE SAID PAN MEMBERS IN SUCCESSIVE RELATIONSHIP AND LOCATE SAID FIRST WALLS THEREOF IN GENERALLY PARALLEL ADJACENT RELATIONSHIP TO THE FLANGES OF SAID SUPPORT MEMBER AND SAID SECOND WALLS THEREOF IN ADJACENT JUXTAPOSED RELATIONSHIP, AND COOPERATING MEANS ON SAID SECOND WALLS PROVIDING A LIGHT SEAL THEREBETWEEN.
Claim 2
Dependent Claim
148 words
IN A BUILDING STRUCTURE, AN ILLUMINATED CEILING COMPRISING, IN COMBINATION, A PAIR OF LONGITUDINAL SUPPORT MEMBERS, EACH INCLUDING AN ANGULARLY DIRECTED FLANGE, MEANS MOUNTING SAID SUPPORT MEMBERS ON SAID BUILDING STRUCTURE IN GENERALLY PARALLEL SPACED RELATIONSHIP WITH SAID FLANGES THEREOF BEING DIRECTED TOWARD EACH OTHER, A LIGHT SOURCE, A PAIR OF PAN MEMBERS OF LIGHT TRANSMITTING MATERIAL SPACED FROM SAID LIGHT SOURCE, EACH HAVING FIRST OPPOSITE SIDE WALLS EXTENDING ANGULARLY TO THE BASE WALLS THEREOF, AND SECOND OPPOSITE SIDE WALLS EXTENDING GENERALLY NORMAL TO THE BASE WALL THEREOF, MEANS REMOVABLY SECURING SAID FIRST WALLS TO SAID FLANGES OF SAID SUPPORT MEMBER TO LOCATE SAID PAN MEMBERS IN SUCCESSIVE RELATIONSHIP AND LOCATE SAID FIRST WALLS THEREOF IN GENERALLY PARALLEL ADJACENT RELATIONSHIP TO THE FLANGES OF SAID SUPPORT MEMBER AND SAID SECOND WALLS THEREOF IN ADJACENT JUXTAPOSED RELATIONSHIP, AND COOPERATING MEANS ON SAID SECOND WALLS PROVIDING A LIGHT SEAL THEREBETWEEN.
References Cited (Backward Citations)
US2511764A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |