US3757110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp shade and method of making the same
Assignee: PYRAMID PLASTICS Inc
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Filing: 1972-10-12
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Granted: 1973-09-04
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Expires: 1992-10-12
Abstract
Abstract A lamp shade frame wherein relatively transverse thermoplastic members define windows therebetween adapted to receive lights therein, and the members have upstanding ribs on the inside thereof defining seating ledges for the lights that may be deformed under heat and pressure to overlie the edges of the lights and lock the lights in the frame.
Inventors
- 👤 T Soboleski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:33
CPC Classifications
F; F21; F21V; F21V1/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
A method of making a lamp shade of the type having relatively transverse members defining windows adapted to receive lamps therein, comprising the steps of providing a frame of thermoplastic material having first members and second members transverse to each other and defining windows therebetween with positioning ledges defined by upstanding ribs on one of said transverse members, said ribs upstanding a dimension greater than the thickness of lights to be placed in said windows, placing lights in windows on either side of one of said ribs, and deforming said one of said ribs under heat and pressure to cause said rib to overlie lights in windows on either side thereof.
Claim 2
Independent Claim
111 words
A method of making a lamp shade of the type having relatively transverse members defining windows adapted to receive lamps therein, comprising the steps of providing a frame of thermoplastic material having first members and second members transverse to each other and defining windows therebetween with positioning ledges defined by upstanding ribs on one of said transverse members, said ribs upstanding a dimension greater than the thickness of lights to be placed in said windows, placing lights in windows on either side of one of said ribs, and deforming said one of said ribs under heat and pressure to cause said rib to overlie lights in windows on either side thereof.
Claim 3
Independent Claim
124 words
A method of making a lamp shade of the type having relatively transverse members defining windows adapted to receive lamps therein, comprising the steps of providing a frame of thermoplastic material having first members and second members transverse to each other and defining windows therebetween with positioning ledges on the insides of one of said transverse members and positioning ledges defined by upstanding ribs on the other of said transverse members, said ribs upstanding a dimension greater than the thickness of lights to be placed in said windows, placing lights in windows on either side of one of said ribs, and deforming said one of said ribs under heat and pressure to cause said rib to overlie lights in windows on either side thereof.
Claim 4
Independent Claim
124 words
A method of making a lamp shade of the type having relatively transverse members defining windows adapted to receive lamps therein, comprising the steps of providing a frame of thermoplastic material having first members and second members transverse to each other and defining windows therebetween with positioning ledges on the insides of one of said transverse members and positioning ledges defined by upstanding ribs on the other of said transverse members, said ribs upstanding a dimension greater than the thickness of lights to be placed in said windows, placing lights in windows on either side of one of said ribs, and deforming said one of said ribs under heat and pressure to cause said rib to overlie lights in windows on either side thereof.
Claim 5
Dependent Claim
92 words
A lamp shade of the type having a plurality of first and second spaced apart relative transverse members of thermoplastic material defining a frame with a plurality of windows between said members, at least one of said plurality of members having an upstanding rib thereon along the length thereof defining light seating ledges on either side of said rib, lights positioned in said windows on said ledges, said ribs being deformed under heat and pressure to overlie lights on said ledges and hold said lights between said ledges and said overlying rib.
Claim 6
Dependent Claim
92 words
A lamp shade of the type having a plurality of first and second spaced apart relative transverse members of thermoplastic material defining a frame with a plurality of windows between said members, at least one of said plurality of members having an upstanding rib thereon along the length thereof defining light seating ledges on either side of said rib, lights positioned in said windows on said ledges, said ribs being deformed under heat and pressure to overlie lights on said ledges and hold said lights between said ledges and said overlying rib.
Claim 7
Dependent Claim
24 words
The shade of claim 3 wherein the other plurality of members have upstanding ribs thereon defining spacers between said lights and seating ledges therefor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |