US3988284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced thermoplastics
Assignee: BASF SE
•
Filing: 1975-01-03
•
Granted: 1976-10-26
•
Expires: 1995-01-03
Abstract
Abstract Reinforced plastics containing an addition of from 0.05 to 2% w/w of a styrene oligomer.
Inventors
- 👤 Rolf Wurmb
- 👤 Joachim Kunde
- 👤 Dieter Stein
- 👤 Hermann Gausepohl
- 👤 Rainer Theysohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:54
CPC Classifications
C; C08; C08L; C08L87/00; C08K; C08K5/00; C08K5/01; C08L25/00; C08L25/02; C08L25/04; C08L25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
Thermoplastic polycondensates and polyadducts selected from the group consisting of polyamides, polyesters, polycarbonates, polyurethanes, and polyoxymethylenes, said polycondensates and polyadducts containing from 10 to 60% by weight of conventional reinforcing agents and also an addition of from 0.05 to 2% by weight of a styrene oligomer.
Claim 2
Dependent Claim
46 words
Thermoplastic polycondensates and polyadducts selected from the group consisting of polyamides, polyesters, polycarbonates, polyurethanes, and polyoxymethylenes, said polycondensates and polyadducts containing from 10 to 60% by weight of conventional reinforcing agents and also an addition of from 0.05 to 2% by weight of a styrene oligomer.
References Cited (Backward Citations)
US2474881A
Cited
US2986411A
Cited
US3332854A
Cited
US3585094A
Cited
US3790515A
Cited
US3803254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |