Patent US3069379A successfully refreshed from Google Patents.
US3069379A
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Composition comprising a polyvinyl acetal, a phenol-aldehyde resin and a polyisocyanate, process for preparing same, and electrical conductor coated therewith
Assignee: Phelps Dodge Copper Products Corp
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Filing: 1959-04-13
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Granted: 1962-12-18
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Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Lavin Edward
- 👤 Andrew F Fitzhugh
- 👤 Robert N Crozier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:22
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/446; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4063; C08G18/54; C08G18/542; C08G18/62; C08G18/6212; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8064; C08G18/8067; C09; C09D; C09D129/00; C09D129/14; H01B3/302; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOSITION COMPRISING, IN PARTS BY WEIGHT, 100 PARTS POLYVINYL ACETAL, 1-50 PARTS HEAT-HARDENABLE PHENOLALDEHYDE RESIN AND 2-80 PARTS BLOCKED POLYISOCYANATE.
Claim 2
Dependent Claim
21 words
A COMPOSITION COMPRISING, IN PARTS BY WEIGHT, 100 PARTS POLYVINYL ACETAL, 1-50 PARTS HEAT-HARDENABLE PHENOLALDEHYDE RESIN AND 2-80 PARTS BLOCKED POLYISOCYANATE.
References Cited (Backward Citations)
US2307588A
Cited
US2321627A
Cited
US2374136A
Cited
US2454678A
Cited
US2532011A
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US2836518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |