US3553114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating a deliquescent substance onto the surface of foamable beads and foaming the beads; the foamable and foamed products obtained therefrom
Assignee: Monsanto Chemicals Ltd
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Filing: 1967-11-29
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Granted: 1971-01-05
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Expires: 1987-11-29
Abstract
Abstract THIS INVENTION RELATES TO FOAMABLE RESINS AND IN PARTICULAR TO PARTICLES OF FOAMABLE VINYLAROMATIC POLYMERS WHICH WHEN FOAMED AND CUT BY HOT WIRE TECHNIQUE EXHIBIT IMPROVED CUT SURFACES DUE TO A COATING OF A DELIQUESCENT SUBSTANCE ON THE FOAMABLE PARTICLES.
Inventors
- 👤 Patrick Vivian Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:19
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224; C08J2325/00; C08J2325/02; Y; Y10; Y10T; Y10T83/00; Y10T83/283; Y10T83/293
Claims Analysis
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |