US3230186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-resistant polystyrene composi-tions containing two rubbery polymers
Assignee: Huels AG
•
Filing: 1962-02-05
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Granted: 1966-01-18
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Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Kreibich Kurt
- 👤 Hagel Karl-Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:07
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08F; C08F291/00; C08F291/02; C08L25/06; C08L51/00; C08L51/04; C08L23/00; C08L23/02; C08L23/16; C08L25/08; C08L25/10; C08L55/00; C08L55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2436842A
Cited
US2616864A
Cited
US2808386A
Cited
US2834750A
Cited
GB861542A
Cited
US3014887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |