Patent US3365313A successfully refreshed from Google Patents.
US3365313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-corrosion compositions
Assignee: Wyeth Holdings LLC
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Filing: 1965-05-24
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Granted: 1968-01-23
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jr George Leathwhite Roberts
- 👤 Fessler Robert Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:02
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09D5/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AS A NEW COMPOSITION OF MATTER AN ANTI-CORROSION PRIMER COATING COMPOSITION COMPRISING A RESIN, AND AN ORGANIC SOLVENT VEHICLE AND AN EFFECTIVE AMOUNT OF AN INSOLUBLE ORGANIC QUATERNARY AMMONIUM COMPLEX WHEREIN THE AMMONIUM MOIETY IS THE CATION OF A WATER-SOLUBLE NON-HETEROCYCLIC QUATERNARY AMMONIUM CATIONIC SURFACTANT; AND THE ANION IS DERIVED FROM A HETEROPOLYANIONIC ACID.
Claim 2
Dependent Claim
54 words
AS A NEW COMPOSITION OF MATTER AN ANTI-CORROSION PRIMER COATING COMPOSITION COMPRISING A RESIN, AND AN ORGANIC SOLVENT VEHICLE AND AN EFFECTIVE AMOUNT OF AN INSOLUBLE ORGANIC QUATERNARY AMMONIUM COMPLEX WHEREIN THE AMMONIUM MOIETY IS THE CATION OF A WATER-SOLUBLE NON-HETEROCYCLIC QUATERNARY AMMONIUM CATIONIC SURFACTANT; AND THE ANION IS DERIVED FROM A HETEROPOLYANIONIC ACID.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |