US3524832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxymethylene containing alkylated diphenyl amine and cyanoguanidine as stabilizers
Assignee: Tenneco Polymers Inc
•
Filing: 1966-11-04
•
Granted: 1970-08-18
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Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 Richard Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:37
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C08K5/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2993025A
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US2920059A
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US3087911A
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US2943112A
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US3313767A
Cited
GB1009883A
Cited
US3204012A
Cited
US3235624A
Cited
US3288885A
Cited
US3397170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |