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Patent US3274216A successfully refreshed from Google Patents.
US3274216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of lactones
Assignee: Union Carbide Corp
•
Filing: 1963-10-02
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Granted: 1966-09-20
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Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 William F Goldsmith
- 👤 David F Marples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:09
CPC Classifications
C; C07; C07D; C07D315/00; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; G; G04; G04C; G04C17/00; G04C17/0008; G04C3/00; G04C3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A STABILIZED COMPOSITION OF MATTER COMPRISING AN EPSILON-CAPROLCATONE AND, INCORPORATED THEREIN, A STABILIZING AMOUNT OF A TRIORGANO PHOSPHITE OF THE FORMULA
Claim 2
Dependent Claim
21 words
A STABILIZED COMPOSITION OF MATTER COMPRISING AN EPSILON-CAPROLCATONE AND, INCORPORATED THEREIN, A STABILIZING AMOUNT OF A TRIORGANO PHOSPHITE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |