US3778611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lampshade and method of assembly
Assignee: CRAFTINGS Inc
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Filing: 1972-04-19
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Granted: 1973-12-11
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Expires: 1992-04-19
Abstract
Abstract Decorative lampshades in a variety of pleasing designs are quickly and simply constructed with a tube of stretch fabric, a plurality of resilient wire rings, and a technique herein referred to as a roll-finish lock. Simple mounting and electrical accessories adapt the shade so produced for use as a hanging ceiling fixture, a table lamp or a floor lamp.
Inventors
- 👤 R Burridge
- 👤 P Everson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:23
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/26; Y; Y10; Y10S; Y10S362/00; Y10S362/806
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
35 words
A lampshade comprising: a tube of stretch fabric; a pair of substantially identical wire frames engaging one end of said tube in a roll-finish lock; and means securing said roll-finish lock to a light fixture.
Claim 2
Dependent Claim
35 words
A lampshade comprising: a tube of stretch fabric; a pair of substantially identical wire frames engaging one end of said tube in a roll-finish lock; and means securing said roll-finish lock to a light fixture.
Claim 3
Dependent Claim
29 words
The lampshade as claimed in claim 1, and additionally comprising a second pair of substantially identical wire frames engaging the other end of said tube in a roll-finish lock.
Claim 4
Dependent Claim
21 words
The lampshade as claimed in claim 2, wherein said securing means includes means for maintaining said roll-finish locks in spaced relation.
Claim 5
Dependent Claim
28 words
The lampshade as defined in claim 2 and additionally comprising at least one intermediate wire frame of a size larger than said pairs of substantially identical wire frames.
Claim 6
Independent Claim
69 words
The method of engaging two substantially identical wire frames with a tube of fabric comprising: a. passing said fabric through and over the periphery of a first frame; b. passing the second frame over the periphery of said first frame to secure said fabric therebetween; c. passing said first frame over said second frame; and d. repeating steps (b) and (c) until said fabric and frames are securely locked.
Claim 7
Independent Claim
69 words
The method of engaging two substantially identical wire frames with a tube of fabric comprising: a. passing said fabric through and over the periphery of a first frame; b. passing the second frame over the periphery of said first frame to secure said fabric therebetween; c. passing said first frame over said second frame; and d. repeating steps (b) and (c) until said fabric and frames are securely locked.
Claim 8
Dependent Claim
22 words
The method as defined in claim 5 and additionally comprising the step of securing a light fixture to the resulting roll-finish lock.
Claim 9
Independent Claim
74 words
The method of engaging two substantially identical wire frames with a tube of fabric comprising: a. passing said fabric around a first frame and over the periphery thereof; b. passing the second frame through the inner periphery of said first frame to secure said fabric therebetween; c. passing said first frame through the inner periphery of said second frame; and d. repeating steps (b) and (c) until said fabric and frame are securely locked.
Claim 10
Independent Claim
74 words
The method of engaging two substantially identical wire frames with a tube of fabric comprising: a. passing said fabric around a first frame and over the periphery thereof; b. passing the second frame through the inner periphery of said first frame to secure said fabric therebetween; c. passing said first frame through the inner periphery of said second frame; and d. repeating steps (b) and (c) until said fabric and frame are securely locked.
References Cited (Backward Citations)
GB932973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |