US4468422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material useful as roofing
Assignee: Color Communications Inc
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Filing: 1981-02-09
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Granted: 1984-08-28
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Expires: 2001-02-09
Abstract
Abstract Fabric useful in sheet roofing is given longer life through inclusion of low-elongation threads adjacent fabric reinforcement edges.
Inventors
- 👤 Philip R. Siener, Jr.
- 👤 Joseph H. McCusker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:09
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; E; E04; E04D; E04D5/00; E04D5/10; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2262/0276; B32B2307/00; B32B2307/30; B32B2307/31; B32B2419/00; B32B2419/06; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/19; Y10T428/24; Y10T428/24355; Y10T428/24777; Y10T428/24785; Y10T428/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A roofing construction comprising overlapping panels of sheet material comprising outer plastic sheets and an inner fabric there between wherein said fabric includes threads of low-elongation material adjacent to at least one edge of each panel, said panels overlapping each other at a said one edge and being heat sealed together at overlapping portions.
Claim 2
Dependent Claim
54 words
A roofing construction comprising overlapping panels of sheet material comprising outer plastic sheets and an inner fabric there between wherein said fabric includes threads of low-elongation material adjacent to at least one edge of each panel, said panels overlapping each other at a said one edge and being heat sealed together at overlapping portions.
Claim 3
Dependent Claim
33 words
The construction of claim 7 in which elongation of the sheet material is no more than 5% under a lifting force of 60 pounds per square foot with plates on 2 foot centers.
Claim 4
Dependent Claim
13 words
The construction of claim 2 in which said low-elongation threads are an aramid.
Claim 5
Dependent Claim
13 words
The construction of claim 3 in which said other threads thereof are polyester.
Claim 6
Dependent Claim
14 words
The roof construction of claim 1 further comprising hold-down plates at said overlapping portions.
Claim 7
Dependent Claim
19 words
The roof construction of claim 5 in which said threads are along 2 parallel edges of each said panel.
References Cited (Backward Citations)
US4113907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |