US2774702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamination of perfluorochloroolefins and polyacrylonitrile
Assignee: MW Kellogg Co
•
Filing: 1953-12-17
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Granted: 1956-12-18
•
Expires: 1973-12-17
Abstract
No abstract record available.
Inventors
- 👤 Richard A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:06
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
A PROCESS FOR FORMING A LAMINATED STRUCTURE WHICH COMPRISES CONTACTING A LAYER OF A SOLID PERFLUOROCHLOROOLEFIN POLYMER WITH A LAYER OF A SOLID POLYACRYLONITRILE. POLYMER; AND MAINTAINING SAID LAYERS IN CONTACT AT A TEMPERATURE OF AT LEAST 135* C. BUT BELOW THE DECOMPOAITION TEMPERATURE OF SAID LAMINATING MATERIALS AND AT A PRESSURE OF AT LEAST 5 POUNDS PER SQUARE INCH GAGE.
Claim 2
Dependent Claim
61 words
A PROCESS FOR FORMING A LAMINATED STRUCTURE WHICH COMPRISES CONTACTING A LAYER OF A SOLID PERFLUOROCHLOROOLEFIN POLYMER WITH A LAYER OF A SOLID POLYACRYLONITRILE. POLYMER; AND MAINTAINING SAID LAYERS IN CONTACT AT A TEMPERATURE OF AT LEAST 135* C. BUT BELOW THE DECOMPOAITION TEMPERATURE OF SAID LAMINATING MATERIALS AND AT A PRESSURE OF AT LEAST 5 POUNDS PER SQUARE INCH GAGE.
Claim 3
Dependent Claim
41 words
A LAMINATED STRUCTURE COMPRISING A LAYER OF A SOLID COPOLYMER OF A PERFLUOROCHLOROOLEFIN AND ANOTHER HALOGENATED ETHYLENE CONTAINING AT LEAST ONE HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE BONDED TO A LAYER OF A SOLID POLYACRYLONITRILE POLYMER.
Claim 4
Dependent Claim
41 words
A LAMINATED STRUCTURE COMPRISING A LAYER OF A SOLID COPOLYMER OF A PERFLUOROCHLOROOLEFIN AND ANOTHER HALOGENATED ETHYLENE CONTAINING AT LEAST ONE HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE BONDED TO A LAYER OF A SOLID POLYACRYLONITRILE POLYMER.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |