US3782998A
Expired / Lapsed
US
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Method of insulating cold substrates and the insulated substrates
Assignee: Atlantic Richfield Co
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Filing: 1971-11-30
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Granted: 1974-01-01
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Expires: 1991-11-30
Abstract
Abstract METHOD OF INSULATING COLD SUBSTRATES BY PROVIDING A FIRST HIGH DENSITY FOAM LAYER ON THE SUBSTRATE WHICH IN TURN PROVIDES A WARM SURFACE FOR DEPOSITING A SECOND INSULATING LAYER OF POLYURETHANE FOAM ON THE SUBSTRATE. IN A FURTHER EMBODIMENT, THE OPPOSITE SURFACE OF THE SUBSTRATE TO THAT BEING INSULATED IS TEMPORARILY INSULATED WITH A NON-FOAM INSULATING MATERIAL PRIOR TO APPLYING THE FIRST LAYER TO THE SUBSTRATE TO SLOW DISSIPATION OF HEAT THROUGH THE SUBSTRATE.
Inventors
- 👤 A Condo
- 👤 C Reph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:51
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/32; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/06; B32B15/00; B32B15/04; B32B15/046; B32B5/18; B32B5/20; B32B7/00; B32B7/04; B32B7/12; C; C08; C08J; C08J9/00; C08J9/35; C08J9/36; C08J9/365; B05; B05D; B05D7/00; B05D7/14; B05D7/16; B05D7/50; B05D7/52; B05D7/54; B29C35/00; B29L; B29L2009/00; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2266/0278; B32B2266/08; B32B2307/00; B32B2307/30; B32B2307/304; B32B2307/306; B32B2307/3065; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/06; C08J2375/00; C08J2375/04; C08J2475/00; C08J2475/04; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249977; Y10T428/249981; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/24999; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31554
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |