US2525107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition for metals
Assignee: Individual
•
Filing: 1945-10-24
•
Granted: 1950-10-10
•
Expires: 1965-10-24
Abstract
No abstract record available.
Inventors
- 👤 Whiting Leo Robert
- 👤 Jr Philip Frederic Wangner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A COATING COMPOSITION CHARACTERIZED BY THE ABILITY TO INHIBIT THE CORROSION OF METALS AND TO SERVE AS A GROUND COAT FOR PAINTING THEREOF, COMPRISING A SOLUTION OF PHOSPHORIC ACID, POLYVINYL BUTYRAL RESIN, A ZINC TETROXY CHROMATE PIGMENT AND A BUTANOL SOLVENT.
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Cited
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Cited
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Cited
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Cited
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Cited
US2487223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |