US3487129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel chlorinated graft copolymer of polyvinyl chloride onto an ethylene polymer backbone
Assignee: Monsanto Co
•
Filing: 1964-03-02
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Granted: 1969-12-30
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Norbert Platzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:27
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F255/00; C08F255/02; C08F8/18; C08F8/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733228A
Cited
US2947719A
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US2996489A
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US3177270A
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US3167535A
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US3268623A
Cited
US3358054A
Cited
US3328371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |