Patent US3080914A successfully refreshed from Google Patents.
US3080914A
Expired / Lapsed
US
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Ceiling construction
Assignee: Johns Manville Corp
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Filing: 1960-03-17
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Granted: 1963-03-12
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Expires: 1980-03-17
Abstract
No abstract record available.
Inventors
- 👤 Edgar D Shippee
- 👤 Jack D Vershoor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:16
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/0478; E04B9/0485; F; F24; F24D; F24D3/00; F24D3/12; F24D3/122; F24D3/127; F24D3/16; F24D3/165; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A SUSPENDED CEILING CONSTRUCTION COMPRISING A SUSPENSION SYSTEM, A PLURALITY OF METALLIC RECTANGULAR PANS HORIZONTALLY ARRANGED TO FORM A CEILING, EACH PAN HAVING A RELATIVELY PLANAR FACE FORMING A BASIC VISIBLE COMPONENT OF SAID CEILING, SAID PANS HAVING THEIR EDGES TURNED UP AT APPROXIMATE RIGHT ANGLES TO THE PLANAR FACES, EACH OF SAID PANS BEING SUPPORTED BY THE SUSPENSION SYSTEM BY A PORTION OF ITS TURNED-UP EDGES, SELECTED PANS HAVING OTHER INTEGRAL PORTIONS OF THEIR TURNED-UP EDGES FORMED INTO TUBULAR SHAPE, CONDUIT MEANS INTERCONNECTING THE TUBULAR PORTIONS OF THE SELECTED PANS, AND MEANS TO PASS A HEATING OR COOLING FLUID THROUGH THE TUBULAR PORTIONS AND INTERCONNECTING CONDUITS.
Claim 2
Dependent Claim
107 words
A SUSPENDED CEILING CONSTRUCTION COMPRISING A SUSPENSION SYSTEM, A PLURALITY OF METALLIC RECTANGULAR PANS HORIZONTALLY ARRANGED TO FORM A CEILING, EACH PAN HAVING A RELATIVELY PLANAR FACE FORMING A BASIC VISIBLE COMPONENT OF SAID CEILING, SAID PANS HAVING THEIR EDGES TURNED UP AT APPROXIMATE RIGHT ANGLES TO THE PLANAR FACES, EACH OF SAID PANS BEING SUPPORTED BY THE SUSPENSION SYSTEM BY A PORTION OF ITS TURNED-UP EDGES, SELECTED PANS HAVING OTHER INTEGRAL PORTIONS OF THEIR TURNED-UP EDGES FORMED INTO TUBULAR SHAPE, CONDUIT MEANS INTERCONNECTING THE TUBULAR PORTIONS OF THE SELECTED PANS, AND MEANS TO PASS A HEATING OR COOLING FLUID THROUGH THE TUBULAR PORTIONS AND INTERCONNECTING CONDUITS.
References Cited (Backward Citations)
US2172771A
Cited
US2382340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |