US3527730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polymers with alkali and alkaline earth metal salts
Assignee: Novartis Corp
•
Filing: 1966-12-27
•
Granted: 1970-09-08
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel Howard Coulson
- 👤 Allan King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/16; C08K5/17; C08K5/175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2784172A
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US2792380A
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US3228904A
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US3267069A
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US3244662A
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US3442981A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |