US3481897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins containing a combination of antioxidants and ultraviolet absorbers
Assignee: JOSEPH M KELLEY
•
Filing: 1967-01-23
•
Granted: 1969-12-02
•
Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Paul J Marinaccio
- 👤 Joseph M Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:01
CPC Classifications
C; C08; C08K; C08K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2971941A
Cited
US3167526A
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US3224973A
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US3280070A
Cited
US3215717A
Cited
US3284387A
Cited
US3245992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |