US3589974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decorative laminate surfaced with a compressed layer of a fibrillated acrylic fiber paper,said paper having been transparentized during a heat and pressure consolidation step and having been substantially free of any impregnating resin
Assignee: Formica Corp
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Filing: 1968-04-24
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Granted: 1971-06-29
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Expires: 1988-04-24
Abstract
Abstract A HEAT AND PRESSURE CONSOLIDATED LAMINATE COMPRISING A RIGIDITY IMPARTING BASE MEMBER, A DECORATIVE SHEET IMPREGNATED WITH MELAMINE-FORMALDEHYDE RESIN AND WITH CERTAIN SOFT THERMOPLASTIC ACRYLIC COPOLYMERS HAVING A GLASS TRANSITION TEMPERATURE OF LESS THAN ABOUT 25*C., HAVING BONDED THERETO A COMPRESSED LAYER OF A FIBRILLATED ACRYLIC FIBER PAPER, SAID PAPER HAVING BEEN TRANSPARENTIZED DURING THE HEAT AND PRESSURE CONSOLIDATION STEP AND HAVING BEEN SUBSTANTIALLY FREE OF ANY IMPREGNATING RESIN AND SAID PAPER HAVING A BASIS WEIGHT OF AT LEAST 20 LBS.
Inventors
- 👤 Donald Joseph Albrinck
- 👤 Alfred Thomas Guertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:07
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H27/28; D21H11/00; D21H11/02; D21H13/00; D21H13/10; D21H13/12; D21H13/18; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/37; D21H17/38; D21H17/46; D21H17/47; D21H17/49; D21H17/51; D21H23/00; D21H23/02; D21H23/22; D21H23/32; D21H23/42; Y; Y10; Y10S; Y10S428/00; Y10S428/918; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249926; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31692; Y10T428/31703; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/31909; Y10T442/00; Y10T442/60; Y10T442/654; Y10T442/656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |