US3501422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High tear strength vulcanizates based on cis-polybutadiene
Assignee: Huels AG
•
Filing: 1965-07-13
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Granted: 1970-03-17
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Expires: 1985-07-13
Abstract
No abstract record available.
Inventors
- 👤 Karl-Heinz Nordsiek
- 👤 Franz-Peter Van De Kamp
- 👤 Gunter Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08L; C08L21/00; Y; Y10; Y10S; Y10S152/00; Y10S152/905; Y10S525/00; Y10S525/942; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3060989A
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US3207741A
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US3264237A
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US3244773A
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US3225122A
Cited
US3281389A
Cited
US3280876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |