Patent US3919146A successfully refreshed from Google Patents.
Patent US4301204A successfully refreshed from Google Patents.
US4301204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet useful as roofing
Assignee: Cooley Inc
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Filing: 1980-11-24
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Granted: 1981-11-17
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Expires: 2000-11-24
Abstract
Abstract Material useful as sheet roofing is made up of a foraminous, stress-free reinforcing layer covered with layers of titanium dioxide bearing unplasticized chlorinated polyethylene.
Inventors
- 👤 Joseph H. McCusker
- 👤 Philip R. Siener, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:35
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/18; B32B37/00; B32B37/14; B32B37/15; B32B37/153; E; E04; E04D; E04D13/00; E04D13/14; E04D13/1407; E04D13/1415; E04D5/00; E04D5/10; B32B2262/00; B32B2262/02; B32B2262/0276; B32B2264/00; B32B2264/10; B32B2264/102; B32B2419/00; B32B2419/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24099; Y10T428/24107; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31935; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/3195; Y10T442/3211
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A sheet comprising a first layer formed from a plastic resin composition, a second layer formed from said plastic resin composition, and a third layer sandwiched between said first layer and said second layer, the plastic in said plastic resin composition consisting of chlorinated polyethylene, said plastic resin composition containing titanium dioxide but no plasticizer, said third layer comprising a foraminous, stressfree reinforcing layer.
Claim 2
Dependent Claim
64 words
A sheet comprising a first layer formed from a plastic resin composition, a second layer formed from said plastic resin composition, and a third layer sandwiched between said first layer and said second layer, the plastic in said plastic resin composition consisting of chlorinated polyethylene, said plastic resin composition containing titanium dioxide but no plasticizer, said third layer comprising a foraminous, stressfree reinforcing layer.
Claim 3
Dependent Claim
15 words
The sheet of claim 1 in which said third layer is a "weft insertion" fabric.
Claim 4
Dependent Claim
12 words
The sheet of claim 2 in which said fabric comprises heat-set polyester.
Claim 5
Dependent Claim
26 words
The sheet of claim 3 in which, of about 300 parts, said chlorinated polyethylene constitutes about 250 parts and said titanium dioxide constitutes about 50 parts.
References Cited (Backward Citations)
US3222237A
Cited
US3822176A
Cited
US3900625A
Cited
US4113907A
Cited
GB1551258A
Cited
US4115614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |