US3207723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyvinyl chloride by oxo alcohol-derived tri-alkyl phosphites and barium-cadmium phenolates
Assignee: American Agricultural Chemical Co
•
Filing: 1961-03-14
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Granted: 1965-09-21
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Buchner Bernard
- 👤 Alan F Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/138; C08K5/49; C08K5/51; C08K5/52; C08K5/524
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3061583A
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US2981716A
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US3000850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |