Patent US3754056A successfully refreshed from Google Patents.
US3754056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antioxidant compositions and polymers stabilized thereby
Assignee: Goodrich Gulf Chemicals Inc
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Filing: 1971-02-17
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Granted: 1973-08-21
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Expires: 1991-02-17
Abstract
Abstract THE REACTION PRODUCT AN ORGANOMETALLIC COMPOUND AND AN ORGANIC COMPOUND PROVIDES A STABILIZING COMPOSITION FOR ELASTOMERS. THE STABILIZING COMPOSITION CAN BE OF LLOW MOLECULAR WEIGHT, OR CAN BE POLYMERIC IN NATURE.
Inventors
- 👤 G Harpell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |