Patent US3200030A successfully refreshed from Google Patents.
US3200030A
Expired / Lapsed
US
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Method of patching wood veneer and manufacturing veneer-paper laminates
Assignee: Weyerhaeuser Co
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Filing: 1961-08-22
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Granted: 1965-08-10
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Expires: 1981-08-22
Abstract
No abstract record available.
Inventors
- 👤 Oita Katashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:13
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; B; B27; B27G; B27G1/00; Y; Y10; Y10T; Y10T428/00; Y10T428/20; Y10T428/31504; Y10T428/3167; Y10T428/31674; Y10T428/31844; Y10T428/31848; Y10T428/31851
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A WOOD VENEER-PAPER LAMINATE HAVING A WOOD VENEER-CORE SHEET IN WHICH THE VOIDS IN SAID CORE SHEET ARE FILLED WITH A THERMOPLASTIC PATCHING COMPOSITION COMPRISING FROM 45-60% OF A CORK-RICH CONIFEROUS BARK FRACTION, FROM 5-8% OF A TALL OIL DERIVATIVE, AND FROM 22-50% OF A PINE WOOD PITCH RESIN.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |