US3428707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified vinyl chloride polymer compositions
Assignee: Dow Chemical Co
•
Filing: 1965-05-10
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Granted: 1969-02-18
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Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 James L Amos
- 👤 Edward D Baretta
- 👤 James J Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:26
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/04; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L83/00; C08L83/04; C08L9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3046239A
Cited
FR1350935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |