US3060068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate and method of forming same
Assignee: Johns Manville Fiber Glass Inc
•
Filing: 1958-07-17
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Granted: 1962-10-23
•
Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 George J Hannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; B; B29; B29C; B29C70/00; B32; B32B; B32B27/00; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
THE METHOD OF FORMING A RESILIENT, DIMENSIONALLY STABLE SHAPED LAMINATE STRUCTURE FIRMLY BONDED THROUGHOUT AND FACED WITH A COVERING THERMOPLASTIC SHEET, COMPRISING ASSEMBLING A SANDWICH-LIKE STRUCTURE COMPRISED OF A THERMOPLASTIC SHEET, AN ADHESIVE FILM, A RESILIENT INTERMEDIATE LAYER OF GLASS FIBERS BONDED TOGETHER BY THERMOPLASTIC RESIN, AND A LAYER OF GLASS FIBERS HAVING AN UNCURED THERMOSETTING RESIN APPLIED THERERO, AND CURING SAID ASSEMBLY UNDER HEAT AND PRESSURE, SAID HEAT BEING SUFFICIENT TO ACTIVATE ONLY A PORTION OF THE THERMOPLASTIC RESIN CONTAINED IN SAID INTERMEDIATE LAYER AND TO CURE THE THERMOSETTING RESIN CONTAINED IN SAID THERMOSETTING RESIN IMPREGNATED GLASS FIBER LAYER TO FORM SAID LAYER TO A DIMENSIONALLY STABLE SHAPE AND TO BOND SAID LAYER TO THE INTERMEDIATE LAYER, SAID HEAT BEING ALSO SUFFICIENT TO SOFTEN SAID THERMOPLASTIC SHEET AND ACTIVATE THE ADHESIVE FILM ATTAT THE SURFACE BETWEEN SAID INTERMEDIATE LAYER AND SAID THERMOPLASTIC SHEET TO BOND THE THERMOPLASTIC SHEET TO THE INTERMEDIATE LAYER.
Claim 2
Independent Claim
153 words
THE METHOD OF FORMING A RESILIENT, DIMENSIONALLY STABLE SHAPED LAMINATE STRUCTURE FIRMLY BONDED THROUGHOUT AND FACED WITH A COVERING THERMOPLASTIC SHEET, COMPRISING ASSEMBLING A SANDWICH-LIKE STRUCTURE COMPRISED OF A THERMOPLASTIC SHEET, AN ADHESIVE FILM, A RESILIENT INTERMEDIATE LAYER OF GLASS FIBERS BONDED TOGETHER BY THERMOPLASTIC RESIN, AND A LAYER OF GLASS FIBERS HAVING AN UNCURED THERMOSETTING RESIN APPLIED THERERO, AND CURING SAID ASSEMBLY UNDER HEAT AND PRESSURE, SAID HEAT BEING SUFFICIENT TO ACTIVATE ONLY A PORTION OF THE THERMOPLASTIC RESIN CONTAINED IN SAID INTERMEDIATE LAYER AND TO CURE THE THERMOSETTING RESIN CONTAINED IN SAID THERMOSETTING RESIN IMPREGNATED GLASS FIBER LAYER TO FORM SAID LAYER TO A DIMENSIONALLY STABLE SHAPE AND TO BOND SAID LAYER TO THE INTERMEDIATE LAYER, SAID HEAT BEING ALSO SUFFICIENT TO SOFTEN SAID THERMOPLASTIC SHEET AND ACTIVATE THE ADHESIVE FILM ATTAT THE SURFACE BETWEEN SAID INTERMEDIATE LAYER AND SAID THERMOPLASTIC SHEET TO BOND THE THERMOPLASTIC SHEET TO THE INTERMEDIATE LAYER.
References Cited (Backward Citations)
US2511887A
Cited
CA530523A
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US1878086A
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US2123155A
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US2227212A
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US2478267A
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US2550465A
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US2768026A
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US2797179A
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US2881110A
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US2815309A
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US2868684A
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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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |