US3582643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp shade construction
Assignee: Individual
•
Filing: 1969-03-10
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Granted: 1971-06-01
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Expires: 1989-03-10
Abstract
Abstract A lamp shade formed of a frame or cage having upper and lower cage rings. The rings are joined by a plurality of generally Vshaped fixture members which cooperate with one another to form a plurality of windows for receipt and removable retention of translucent flat plates or panels. Upon assembly of the plates within the windows, the shade has a configuration which is generally cylindrical as distinguished from generally polyhedral.
Inventors
- 👤 Frank L Heise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:48
CPC Classifications
F; F21; F21V; F21V1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
A lamp shade for mounting upon a lamp base comprising a retainer frame, said frame including an upper ring member and a lower ring member, a plurality of like fixture members connecting said ring members one to the other, said fixture members being equiangularly spaced around the said ring members to define a plurality of windows and guideways in the retainer frame, each of said fixture members comprising a generally V-shaped bracket member forming a pair of wings and a circular rod secured to the apex of said V-shaped member, one wing of each said V-shaped member cooperating with a like wing of the next adjacent V-shaped member to define said guideways in said retainer frame, and a plurality of flat light diffusion members positioned upon said retainer frame within the windows and retained therein by said guideways such that any two adjacent light diffusion members are separated from each other by an upstanding circular rod.
Claim 2
Dependent Claim
156 words
A lamp shade for mounting upon a lamp base comprising a retainer frame, said frame including an upper ring member and a lower ring member, a plurality of like fixture members connecting said ring members one to the other, said fixture members being equiangularly spaced around the said ring members to define a plurality of windows and guideways in the retainer frame, each of said fixture members comprising a generally V-shaped bracket member forming a pair of wings and a circular rod secured to the apex of said V-shaped member, one wing of each said V-shaped member cooperating with a like wing of the next adjacent V-shaped member to define said guideways in said retainer frame, and a plurality of flat light diffusion members positioned upon said retainer frame within the windows and retained therein by said guideways such that any two adjacent light diffusion members are separated from each other by an upstanding circular rod.
Claim 3
Dependent Claim
60 words
A lamp shade as defined in claim 1 in which said lower ring member includes a flat band and a bottom stop ring wrapped completely about the inner surface of the metal band, said V-shaped members being positioned along the inner surface of said lower ring member such that the bottom portion of each circular rod abuts said stop ring.
Claim 4
Dependent Claim
31 words
A lamp shade as defined in claim 2 in which said light diffusion members are removably retained upon said retainer frame between said adjacent wings and rest upon said stop ring.
Claim 5
Dependent Claim
18 words
A lamp shade as defined in claim 1 in which said retainer frame is of substantially cylindrical configuration.
Claim 6
Dependent Claim
16 words
A lamp shade as defined in claim 1 in which said light diffusion members are glass.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |