US4363082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel ceiling and light fixture
Assignee: Levolor Corp
•
Filing: 1980-08-26
•
Granted: 1982-12-07
•
Expires: 2000-08-26
Abstract
Abstract A lighting fixture combined with a suspended ceiling in which ceiling panels are supported from channels and one or more fluorescent tubes are provided in a box or boxes supported by the channels and a lens or lenses are, arranged below the box and of the same shape as the ceiling panels so as to blend in with adjacent ceiling panels.
Inventors
- 👤 George R. Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:14
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02; F21V21/04; F21S; F21S8/00; F21S8/02; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
73 words
In a suspended ceiling: channel means suspended from a support, a plurality of elongated ceiling panels arranged parallel to each other and supported by said channel means essentially perpendicular thereto in an essentially horizontal plane, at least one lighting fixture including fluorescent tube means housed in a box-shaped housing, and lens means arranged below said lighting fixture and being of the same shape as said ceiling panels so as to fully blend therewith.
Claim 2
Dependent Claim
73 words
In a suspended ceiling: channel means suspended from a support, a plurality of elongated ceiling panels arranged parallel to each other and supported by said channel means essentially perpendicular thereto in an essentially horizontal plane, at least one lighting fixture including fluorescent tube means housed in a box-shaped housing, and lens means arranged below said lighting fixture and being of the same shape as said ceiling panels so as to fully blend therewith.
Claim 3
Dependent Claim
74 words
The combination of claim 1, wherein said ceiling panels are made from metal and essentially U-shaped with a relatively flat bottom remote from said channel means and flanges, said channel means having grooves respectively receiving said flanges, said lens means being made of an at least partially transparent material and being essentially U-shaped with a relatively flat bottom forming on extension of adjacent bottoms of adjacent panels and with flanges received by said grooves.
Claim 4
Dependent Claim
79 words
The combination according to claim 1, wherein said ceiling panels are made from metal and essentially V-shaped with the tip of the V pointing away from said channel means and with flanges, said channel means having grooves respectively receiving said flanges, said lens means being made of an at least partly transparent material and being essentially V-shaped with the tip of the V forming an extension of adjacent V's of adjacent panels, and with flanges received in said grooves.
Claim 5
Dependent Claim
75 words
The combination of claim 1, wherein said ceiling panels are made from metal and essentially U-shaped with a relatively flat bottom remote from said channel means and flanges, said channel means having grooves respectively receiving said flanges, said lens means comprising a panel of a material and shape corresponding to that of said ceiling panels and having a cut-out in its bottom and having a lens of at least partially transparent material covering said cut-out.
Claim 6
Dependent Claim
85 words
The combination according to claim 1, wherein said ceiling panels are made from metal and essentially V-shaped with the tip of the V pointing away from said channel means and with flanges, said channel means having grooves respectively receiving said flanges, said lens means comprising a panel of a material and shape corresponding to that of said ceiling panels and having a cut-out in at least one of the sides of said V and a lens of at least partially transparent material covering said cut-out.
Claim 7
Dependent Claim
81 words
The combination according to claim 1, wherein said ceiling panels are made from metal and essentially V-shaped with the tip of the V pointing away from said channel means and with flanges, said channel means having grooves respectively receiving said flanges, said lens means comprising a panel of a material and shape corresponding to that of said ceiling panels and having a cut-out in both sides of said V, and two lenses of transparent material covering said cut-outs in said sides.
Claim 8
Dependent Claim
89 words
The combination of claim 1, wherein said ceiling panels are made from metal and essentially U-shaped with a relatively flat bottom remote from said channel means and flanges, said channel means having grooves respectively receiving said flanges, said lens means comprising a panel of a material and shape corresponding to that of said ceiling panels and having a cut-out in its bottom and a lens located in said panel above said cut-out and including a grid-like structure with openings therein permitting light from said fluorescent tube means to penetrate.
References Cited (Backward Citations)
US2398507A
Cited
GB669993A
Cited
US3004141A
Cited
US2973177A
Cited
US3081398A
Cited
US3154001A
Cited
US3051430A
Cited
US3209137A
Cited
US3375322A
Cited
US3336471A
Cited
US3591794A
Cited
US3512313A
Cited
US3560729A
Cited
US3710520A
Cited
US3786602A
Cited
US3922073A
Cited
US4086480A
Cited
US4175360A
Cited
US4171535A
Cited
US4272804A
Cited
US4290218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |