US3252944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethane coating composition for electrical conductors and method
Assignee: Motors Liquidation Co
•
Filing: 1962-08-27
•
Granted: 1966-05-24
•
Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/307; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; C08G18/24; C08G18/242; C08G18/26; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/3215; C08G18/3221; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/664; C08G18/6644; H01B3/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ELECTRICAL CONDUCTOR COATING BATH COMPRISING A SOLVENT SOLUTION OF TWO ISOCYANATE EQUIVALENTS OF AN ORGANIC DIISOCYANATE CONTAINING AN AROMATIC GROUP, 1.25 TO 0.75 HYDROXYL EQUIVALENTS OF A DIOL HAVING AN AROMATIC STRUCTURE IN WHICH THE HYDROXYL GROUPS ARE ATTACHED TO ALIPHATIC CHAINS NOT MORE THAN 2 CARBONS IN LENGTH, 0.75 TO 1.25 HYDROXYL EQUIVALENTS OF A TRIOL CONTAINING NO HYDROGEN ATOMS ON THE CARBON ATOM ATTACHED TO THE METHYLOL GROUP AND A CATALYST COMPRISING A SMALL BUT EFFECTIVE AMOUNT OF A METAL-CONTAINING ORGANIC COMPOUND SOLUBLE IN SAID SOLVENT SOLUTION TAKEN FROM THE GROUP CONSISTING OF LEAD NAPHTHENATE, A LEAD PHENOLATE, LEAD OCTOATE, DIBUTYLTIN DILAURATE AND TRIPHENYLTIN OXIDE.
Claim 2
Dependent Claim
108 words
AN ELECTRICAL CONDUCTOR COATING BATH COMPRISING A SOLVENT SOLUTION OF TWO ISOCYANATE EQUIVALENTS OF AN ORGANIC DIISOCYANATE CONTAINING AN AROMATIC GROUP, 1.25 TO 0.75 HYDROXYL EQUIVALENTS OF A DIOL HAVING AN AROMATIC STRUCTURE IN WHICH THE HYDROXYL GROUPS ARE ATTACHED TO ALIPHATIC CHAINS NOT MORE THAN 2 CARBONS IN LENGTH, 0.75 TO 1.25 HYDROXYL EQUIVALENTS OF A TRIOL CONTAINING NO HYDROGEN ATOMS ON THE CARBON ATOM ATTACHED TO THE METHYLOL GROUP AND A CATALYST COMPRISING A SMALL BUT EFFECTIVE AMOUNT OF A METAL-CONTAINING ORGANIC COMPOUND SOLUBLE IN SAID SOLVENT SOLUTION TAKEN FROM THE GROUP CONSISTING OF LEAD NAPHTHENATE, A LEAD PHENOLATE, LEAD OCTOATE, DIBUTYLTIN DILAURATE AND TRIPHENYLTIN OXIDE.
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |