Patent US2964426A successfully refreshed from Google Patents.
US2964426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of impregnating paper to form laminated material
Assignee: Evonik Operations GmbH
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Filing: 1958-11-20
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Granted: 1960-12-13
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Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Holtschmidt Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:22
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; B; B32; B32B; B32B27/00; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H17/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A NOVEL METHOD FOR PRODUCING LAMINATED MATERIAL WHICH COMPRISES: (A) IMPREGNATING A THIN SHEET OF DECORATIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF PAPER AND FABRIC WITH A FIRST MELAMINE-FORMALDEHYDE RESIN MATERIAL. (B) REMOVING ANY EXCESS AMOUNTS OF SAID FIRST RESIN AND AT LEAST PARTIALLY DRYING SAID IMPREGNATED THIN SHEET OF DECORATIVE MATERIAL. (C) FURTHER COATING SAID IMPREGNATED THIN SHEET OF DECORATIVE MATERIAL WITH A SECOND MELAMINE-FORMALDEHYDE RESIN MATERIAL. (D) AT LEAST PARTIALLY DRYING SAID IMPREGNATED AND COATED THIN SHEET OF DECORATIVE MATERIAL, AND (E) SAID FIRST MELAMINE-FORMALDEHYDE RESIN MATERIAL HAVING HIGHER FLOWABILITY PROPERTIES THAN SAID SECOND MELAMINE-FORMALDEHYDE RESIN MATERIAL DURING SUBSEQUENT PRESSING OPERATIONS.
Claim 2
Dependent Claim
104 words
A NOVEL METHOD FOR PRODUCING LAMINATED MATERIAL WHICH COMPRISES: (A) IMPREGNATING A THIN SHEET OF DECORATIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF PAPER AND FABRIC WITH A FIRST MELAMINE-FORMALDEHYDE RESIN MATERIAL. (B) REMOVING ANY EXCESS AMOUNTS OF SAID FIRST RESIN AND AT LEAST PARTIALLY DRYING SAID IMPREGNATED THIN SHEET OF DECORATIVE MATERIAL. (C) FURTHER COATING SAID IMPREGNATED THIN SHEET OF DECORATIVE MATERIAL WITH A SECOND MELAMINE-FORMALDEHYDE RESIN MATERIAL. (D) AT LEAST PARTIALLY DRYING SAID IMPREGNATED AND COATED THIN SHEET OF DECORATIVE MATERIAL, AND (E) SAID FIRST MELAMINE-FORMALDEHYDE RESIN MATERIAL HAVING HIGHER FLOWABILITY PROPERTIES THAN SAID SECOND MELAMINE-FORMALDEHYDE RESIN MATERIAL DURING SUBSEQUENT PRESSING OPERATIONS.
References Cited (Backward Citations)
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US1439743A
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US1857690A
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US2380239A
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |