US3313675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate and process of preparing the same
Assignee: Formica Corp
•
Filing: 1963-06-03
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Granted: 1967-04-11
•
Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Petropoulos John Christos
- 👤 Jr Auguste Eugene Rimpel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:58
CPC Classifications
B; B32; B32B; B32B27/00; E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/288; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31652; Y10T428/31855; Y10T428/31859; Y10T428/31862
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A CONSOLIDATED UNITARY LAMINATE STRUCTURE COMPRISING AS A BASE MEMBER, A CEMENT-ASBESTOS BOARD, A COATING OF SUBSTANTIALLY COMPLETELY CURED POLYAMINE BIS PHENOLEPICHLOROHYDRIN RESIN COMPOSITION ON SAID CEMENT-ASBESTOS BOARD, A SUBSTANTIALLY THERMOSET RESIN-IMPREGNATED FIBROUS SHEET WHEREIN THE BIS PHENOL-EPICHLOROHYDRIN RESIN AS APPLIED HAS AN EPOXY EQUIVALENT VARYING BETWEEN ABOUT 180 AND ABOUT 550 BEFORE CURE, WHEREIN SAID POLYAMINE IS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC PRIMARY AND SECONDARY POLYAMINES AND WHEREIN THE COATING OF THE POLYAMINES-EPOXY RESIN IS SUFFICIENT TO PROVIDE A FILM ON THE SURFACE OF SAID CEMENTASBESTOS BOARD WITHOUT SIGNIFICANTLY FILLING THE VOIDS AND INTERSTICES ON SAID SURFACE.
References Cited (Backward Citations)
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US2801198A
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |