Thermoplastic resinous composition
Abstract
Abstract A thermoplastic resinous composition comprising a thermoplastic resin and mixed therewith at least two fillers selected from the group consisting of calcium sulfite, calcium sulfate and calcium carbonate (excepting a mixture system of calcium sulfite and calcium sulfate), the respective amount of the filler being, as shown in the drawing, within the range surrounded by the point A (100 percent by weight of calcium sulfite, 0 percent by weight of calcium carbonate and 0 percent by weight of calcium sulfate), the point B (20 percent by weight of calcium sulfite and 80 percent by weight of calcium carbonate) and the point C (10 percent by weight of calcium sulfite and 90 percent by weight of calcium sulfate).
Inventors
- 👤 Rinnosuke Susuki
- 👤 Hiroshi Hoshi
- 👤 Jiro Saito
- 👤 Keiichi Murakami
- 👤 Michio Hirakawa
Bibliographic Details
Claims Analysis
Total Claims: 1References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |