Patent US3797471A successfully refreshed from Google Patents.
US3496253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(vinyl chloride)-diallyl phthalate molding powders
Assignee: FMC Corp
•
Filing: 1966-11-07
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Granted: 1970-02-17
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Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 James P Hamilton
- 👤 Daniel A Lima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665263A
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US2618621A
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US3359193A
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US2958669A
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US3074905A
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US3157713A
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US3414534A
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US3329642A
Cited
US3351604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |