US3833534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced polyamide compositions and process of preparation thereof
Assignee: Monsanto Co
•
Filing: 1972-06-05
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Granted: 1974-09-03
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Expires: 1992-06-05
Abstract
Abstract HIGH MOLECULAR WEIGHT POLYAMIDE COMPOSITIONS REINFORCED WITH FROM ABOUT 2 TO ABOUT 55% BY VOLUME SMALL PARTICLE SIZE CRYSTALLINE FILLER AND AN ORGNOSILANE COUPLING AGENT. COMPOSITIONS HAVE IMPROVED MECHANICAL PROPERTIES SUCH AS CONCURRENT HIGH MODULUS AND HIGH MUTIAXIAL IMPACT STRENGTH. ALSO DISCLOSED ARE PROCESSES FOR PREPARING THE ABOVE COMPOSITIONS AS WELL AS ARTICLES OF MANUFACTURE.
Inventors
- 👤 P Tierney
- 👤 R Hedrick
- 👤 J Gabbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |