US2885312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal coating compositions
Assignee: Kelite Corp
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Filing: 1956-03-05
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Granted: 1959-05-05
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Louis M Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C09; C09D; C09D125/00; C09D125/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A CORROSION PROTECTIVE COMPOSITION FOR METAL COMPRISING AN AQUEOUS COATING BATH INCLUDIG A MAJOR PROPORTION OF A WATER-SOLUBLE INORGANIC COMPONENT REACTIVE WITH SAID METAL TO PROVIDE A CORROSION-RESISTANT COATING THEREON AND A MINOR PROPORTION OF FROM ABOUT 10-20% BY WEIGHT BASED ON SAID WATER-SOLUBLE INORGANIC COMPONENT OF A POLYMERIC MATERIAL CONTAINING A STRONG POLAR GROUPING SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE SULFONIC ACID, POLYSTYRENE PHOSPHONIC ACID, STYRENE HETTEROPOLYMER OF MALERIC ACID, STYRENE HETEROPOLYMER OF AMMONIUM MALERATE AND POLYSTYRENE SULFONIC ACID AMMONIUM SALT.
Claim 2
Dependent Claim
83 words
A CORROSION PROTECTIVE COMPOSITION FOR METAL COMPRISING AN AQUEOUS COATING BATH INCLUDIG A MAJOR PROPORTION OF A WATER-SOLUBLE INORGANIC COMPONENT REACTIVE WITH SAID METAL TO PROVIDE A CORROSION-RESISTANT COATING THEREON AND A MINOR PROPORTION OF FROM ABOUT 10-20% BY WEIGHT BASED ON SAID WATER-SOLUBLE INORGANIC COMPONENT OF A POLYMERIC MATERIAL CONTAINING A STRONG POLAR GROUPING SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE SULFONIC ACID, POLYSTYRENE PHOSPHONIC ACID, STYRENE HETTEROPOLYMER OF MALERIC ACID, STYRENE HETEROPOLYMER OF AMMONIUM MALERATE AND POLYSTYRENE SULFONIC ACID AMMONIUM SALT.
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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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |