US3554856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic polymers as binders for pressboards and coatings
Assignee: Monsanto Co
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Filing: 1969-12-17
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Granted: 1971-01-12
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Expires: 1989-12-17
Abstract
Abstract A PRESSBOARD COMPRISED OF A MIXTURE OF ACRYLIC POLYMERS AND WOOD PARTICLES IS PREPARED BY SUBJECTING THE MIXTURE TO HEAT AND PRESSURE CONDITIONS FOR A TIME SUFFICIENT TO CONVERT THE POLYMER INTO A VISCOUS MASS FOR BONDING THE WOOD PARTICLES.
Inventors
- 👤 Robert E Opferkuch Jr
- 👤 Frank Stutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/256; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |