Patent US3640797A successfully refreshed from Google Patents.
US3640797A
Expired / Lapsed
US
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Facing plywood having printed grain
Assignee: Toyo Plywood Co Ltd
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Filing: 1970-10-20
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Granted: 1972-02-08
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Expires: 1990-10-20
Abstract
Abstract A facing plywood having a printed grain on the surface and so constructed that the fibers of a lauan face veneer and numerous fibers of a sheet glued onto the face ply and also the fibers of a grain patten printed on the surface of the sheet are all arranged in substantially the same direction, whereby the natural contour of the face ply with all its tiny grooves formed of vessels and vascular tracheids exposed on the surface can be finely reproduced on the uppermost surface for enhanced ornamental wood-graining effect.
Inventors
- 👤 Youichi Taguchi
- 👤 Shinji Asano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:43
CPC Classifications
B; B27; B27D; B27D1/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24355; Y10T428/24438
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |