US3014834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producting laminated board
Assignee: Electro-Chem Fiber Seal Corp
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Filing: 1957-05-01
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Granted: 1961-12-26
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Expires: 1977-05-01
Abstract
No abstract record available.
Inventors
- 👤 Donald K Pattilloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:53
CPC Classifications
B; B32; B32B; B32B27/00; D; D21; D21H; D21H11/00; D21H11/02; D21H11/04; D21H11/06; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/46; D21H17/47; D21H17/48; D21H17/49; D21H17/50; D21H27/00; D21H27/18; D21H27/22; D21H27/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE PROCESS FOR THE PREPARATION OF A LAMINATED BOARD CONSISTING TREATING AN AQUEOUS SUSPENSION OF CELLULOSE FIBERS WITH 1-5% OF A DICYANDIAMIDE-FORMALDHYDE CONDENSATION PRODUCT, TREATING THE SUSPENSION WITH 60200% OF A PHENOL-ALDEHYDE RESIN, FORMING THE RESULTING SUSPENSION INTO A SHEET, BONDING A PLURALITY OF SAID SHEETS TOGETHER AND CURING UNDER HEAT AND PRESSURE, SAID PERCENTAGES BEING BASED ON THE DRY WEIGHT OF SAID FIBERS.
Claim 2
Dependent Claim
64 words
THE PROCESS FOR THE PREPARATION OF A LAMINATED BOARD CONSISTING TREATING AN AQUEOUS SUSPENSION OF CELLULOSE FIBERS WITH 1-5% OF A DICYANDIAMIDE-FORMALDHYDE CONDENSATION PRODUCT, TREATING THE SUSPENSION WITH 60200% OF A PHENOL-ALDEHYDE RESIN, FORMING THE RESULTING SUSPENSION INTO A SHEET, BONDING A PLURALITY OF SAID SHEETS TOGETHER AND CURING UNDER HEAT AND PRESSURE, SAID PERCENTAGES BEING BASED ON THE DRY WEIGHT OF SAID FIBERS.
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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) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |