Patent US3282008A successfully refreshed from Google Patents.
US3282008A
Expired / Lapsed
US
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Roof structure
Assignee: Dow Chemical Co
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Filing: 1963-02-14
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Granted: 1966-11-01
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Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 Sheahan James Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:45
CPC Classifications
E; E04; E04D; E04D11/00; E04D11/02; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; E04B1/941; E04D13/00; E04D13/16; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249981; Y10T428/31504; Y10T428/31652; Y10T428/31656; Y10T428/31678; Y10T428/31707
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN IMPROVED ROOF STRUCTURE WHICH FUNCTIONS TO PREVENT INTENSITY INCREASE AND PROPAGATION OF A FIRE UNDER SAID ROOF STRUCTURE AS A RESULT OF MELTED ROOFING MATERIALS FLOWING INTO SAID FIRE, COMPRISING IN COMBINATION, A ROOF DECK, A CONTINUOUS COATING OF RUBBER BASE FIRE BESISTANT ADHESIVE ON SAID DECK, A NON-COMBUSTIBLE WATER VAPOR PERVIOUS SHEET ADHERED BY SAID ADHESIVE TO SAID DECK AND COMPLETELY COVERING SAID DECK, A COATING OF WATERPROOF SUBSTANCE COMPLETELY COVERING SAID NON-COMBUSTIBLE SHEET AND ADHERED THERETO, A LAYER OF THERMOINSULATING MATERIAL ADHERED TO THE TOP OF SAID COATING OF WATERPROOF SUBSTANCE AND AT LEAST ONE LAYER OF ROOFING MATERIAL COMPLETELY COVERING AND ADHERED TO SAID INSULATING MATERIAL.
Claim 2
Dependent Claim
110 words
AN IMPROVED ROOF STRUCTURE WHICH FUNCTIONS TO PREVENT INTENSITY INCREASE AND PROPAGATION OF A FIRE UNDER SAID ROOF STRUCTURE AS A RESULT OF MELTED ROOFING MATERIALS FLOWING INTO SAID FIRE, COMPRISING IN COMBINATION, A ROOF DECK, A CONTINUOUS COATING OF RUBBER BASE FIRE BESISTANT ADHESIVE ON SAID DECK, A NON-COMBUSTIBLE WATER VAPOR PERVIOUS SHEET ADHERED BY SAID ADHESIVE TO SAID DECK AND COMPLETELY COVERING SAID DECK, A COATING OF WATERPROOF SUBSTANCE COMPLETELY COVERING SAID NON-COMBUSTIBLE SHEET AND ADHERED THERETO, A LAYER OF THERMOINSULATING MATERIAL ADHERED TO THE TOP OF SAID COATING OF WATERPROOF SUBSTANCE AND AT LEAST ONE LAYER OF ROOFING MATERIAL COMPLETELY COVERING AND ADHERED TO SAID INSULATING MATERIAL.
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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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |