Patent US3274679A successfully refreshed from Google Patents.
US3274679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fabricating protected metal sheets
Assignee: Hospitality Homes
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Filing: 1963-12-19
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Granted: 1966-09-27
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Harold E Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:49
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/02; B29C63/0004; B29C63/04; B29C63/044; E; E04; E04B; E04B1/00; E04B1/62; E04B1/64; E04B1/642; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49888; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
IN THE PROCESS OF PRODUCING A PROTECTED METAL SHEET FROM A COIL OF METAL CORE SHEET INCLUDING THE SEQUENTIAL STEP OF: METAL-COATING THE METAL CORE SHEET; APPLYING A SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL COATING WHILE SAID COATING IS AT LEAST PARTIALLY MOLTEN, THEREBY BONDING SAID SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL SHEET; IMPREGNATING THE SAID ASBESTOS FELT SHEET WITH A HIGH FLASH POINT ASPHALT SATURANT IN MOLTEN CONDITION; AND RECOILING THE RESULTING PROTECTED METAL SHEET; THE IMPROVEMENT COMPRISING: RECOILING THE SAID RESULTING PROTECTED METAL SHEET AT A TEMPERATURE BETWEEN 250*AND 400*F.
Claim 2
Dependent Claim
94 words
IN THE PROCESS OF PRODUCING A PROTECTED METAL SHEET FROM A COIL OF METAL CORE SHEET INCLUDING THE SEQUENTIAL STEP OF: METAL-COATING THE METAL CORE SHEET; APPLYING A SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL COATING WHILE SAID COATING IS AT LEAST PARTIALLY MOLTEN, THEREBY BONDING SAID SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL SHEET; IMPREGNATING THE SAID ASBESTOS FELT SHEET WITH A HIGH FLASH POINT ASPHALT SATURANT IN MOLTEN CONDITION; AND RECOILING THE RESULTING PROTECTED METAL SHEET; THE IMPROVEMENT COMPRISING: RECOILING THE SAID RESULTING PROTECTED METAL SHEET AT A TEMPERATURE BETWEEN 250*AND 400*F.
Claim 3
Dependent Claim
106 words
IN THE PROCESS OF PRODUCING A PROTECTED METAL SHEET FROM A COIL OF METAL CORE SHEET INCLUDING THE SEQUENTIAL STEPS OF: METAL-COATING THE METAL CORE SHEET; APPLYIMG A SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL COATING WHILE SAID COATING IS AT LEAST PARTIALLY MOLTEN, THEREBY BONDING SAID SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL SHEET; IMPREGNATING THE SAID ASBESTOS FELT SHEET WITH A HIGH FLASH POINT ASPHALT IN MOLTEN CONDITION; AND RECOILING THE RESULTING PROTECTED METAL SHEET; THE IMPROVEMENT COMPRISING: HEATING THE ASPHALT-IMPREGNATED, FIBROUS-BONDED, METAL-COATED CORE SHEET TO A TEMPERATURE BETWEEN 280*TO 400*F. PRIOR TO RECOILING AND THEREAFTER CARRYING OUT THE SAID RECOILING BETWEEN 250*AND 400*F.
Claim 4
Dependent Claim
106 words
IN THE PROCESS OF PRODUCING A PROTECTED METAL SHEET FROM A COIL OF METAL CORE SHEET INCLUDING THE SEQUENTIAL STEPS OF: METAL-COATING THE METAL CORE SHEET; APPLYIMG A SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL COATING WHILE SAID COATING IS AT LEAST PARTIALLY MOLTEN, THEREBY BONDING SAID SUBSTANTIALLY ASBESTOS FELT SHEET TO SAID METAL SHEET; IMPREGNATING THE SAID ASBESTOS FELT SHEET WITH A HIGH FLASH POINT ASPHALT IN MOLTEN CONDITION; AND RECOILING THE RESULTING PROTECTED METAL SHEET; THE IMPROVEMENT COMPRISING: HEATING THE ASPHALT-IMPREGNATED, FIBROUS-BONDED, METAL-COATED CORE SHEET TO A TEMPERATURE BETWEEN 280*TO 400*F. PRIOR TO RECOILING AND THEREAFTER CARRYING OUT THE SAID RECOILING BETWEEN 250*AND 400*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |