Patent US4428036A successfully refreshed from Google Patents.
US4428036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light fittings
Assignee: Individual
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Filing: 1982-11-22
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Granted: 1984-01-24
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Expires: 2002-11-22
Abstract
Abstract This invention relates to light fittings and in particular to a light fitting including a shade or surround in association with a source of light.
Inventors
- 👤 Philip W. Letcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:30
CPC Classifications
F; F21; F21V; F21V3/00; Y; Y10; Y10S; Y10S362/00; Y10S362/806
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A light fitting comprising at least one source of light and a shade or surround formed of earthenware ceramic material at least partially surrounding and enclosing said at least one source of light, said material on at least the inside of said shade or surround being tinted with one or more colors and having a substantially rough cast surface.
Claim 2
Dependent Claim
59 words
A light fitting comprising at least one source of light and a shade or surround formed of earthenware ceramic material at least partially surrounding and enclosing said at least one source of light, said material on at least the inside of said shade or surround being tinted with one or more colors and having a substantially rough cast surface.
Claim 3
Dependent Claim
100 words
A light fitting comprising at least one source of light, a substantially elongate and hollow cylindrical shade, or surround, formed of an earthenware ceramic material and tinted with one or more colors on at least an inner surface thereof, an opening through one end of said shade, said source of light being attached to said shade at said opening, the other end of said shade being substantially fully open, so that the shade at least partially surrounds and encloses said at least one source of light, and at least the inside surface of said shade having a substantially roughcast surface.
Claim 4
Dependent Claim
100 words
A light fitting comprising at least one source of light, a substantially elongate and hollow cylindrical shade, or surround, formed of an earthenware ceramic material and tinted with one or more colors on at least an inner surface thereof, an opening through one end of said shade, said source of light being attached to said shade at said opening, the other end of said shade being substantially fully open, so that the shade at least partially surrounds and encloses said at least one source of light, and at least the inside surface of said shade having a substantially roughcast surface.
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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |