US3158664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer blends consisting of a rigid vinyl chloride polymer and a rubbery interpolymer of isobutylene and butadiene or isoprene and process of preparing the same
Assignee: Monsanto Co
•
Filing: 1958-12-22
•
Granted: 1964-11-24
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Baer Massimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2247064A
Cited
GB711853A
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US2624682A
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US2769789A
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US2739082A
Cited
US2858292A
Cited
US2901458A
Cited
US3019209A
Cited
US3005796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |