US3208968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal coordination complexes of o-hydroxybenzalphenylhydrazones and solid polymers stabhized therewith
Assignee: Sunoco Inc
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Filing: 1961-10-23
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Granted: 1965-09-28
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Expires: 1981-10-23
Abstract
No abstract record available.
Inventors
- 👤 Henryk A Cyba
- 👤 Allen K Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
SOLID POLYMER NORMALLY SUBJECT TO DETERIORATION BY OXIDATION AND ULTRAVIOLET LIGHT CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A STABILIZING CONCENTRATION OF A COORDINATION COMPLEX OF AN O-HYDROXYBENZALPHENYLHYDRAZONE AND A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COPPER, COBALT AND ZINC.
Claim 2
Dependent Claim
42 words
SOLID POLYMER NORMALLY SUBJECT TO DETERIORATION BY OXIDATION AND ULTRAVIOLET LIGHT CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A STABILIZING CONCENTRATION OF A COORDINATION COMPLEX OF AN O-HYDROXYBENZALPHENYLHYDRAZONE AND A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COPPER, COBALT AND ZINC.
Claim 3
Dependent Claim
20 words
A COORDINATION COMPLEX OF AN O-HYDROXYLBENZALPHENYLHYDRAZONE AND A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COPPER, COBALT AND ZINC.
Claim 4
Dependent Claim
20 words
A COORDINATION COMPLEX OF AN O-HYDROXYLBENZALPHENYLHYDRAZONE AND A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COPPER, COBALT AND ZINC.
References Cited (Backward Citations)
US2665265A
Cited
US2877252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |