US3496134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of rigid poly(vinylchloride) plastics with bis-amides and ultraviolet absorbers
Assignee: Wyeth Holdings LLC
•
Filing: 1967-06-20
•
Granted: 1970-02-17
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Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Matthew Peter Di Giaimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C08K5/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2648650A
Cited
FR1086182A
Cited
US2919259A
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US2921048A
Cited
US3214436A
Cited
US3244668A
Cited
US3118887A
Cited
US3079366A
Cited
US3239478A
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 |