Patent US3325432A successfully refreshed from Google Patents.
US3325432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayable weldable primer containing polyvinyl butyral, chromium trioxide, and aluminum powder
Assignee: Monsanto Co
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Filing: 1965-07-19
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Granted: 1967-06-13
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Morton D Kellert
- 👤 Shay Robert V De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:32
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SPRAYABLE WELDABLE ANTI-CORROSIVE PRIMER COMPRISING FROM 7.3 TO 10.5 PARTS OF POLYVINYL BUTYRAL; FROM 76.5 TO 85 PARTS OF AT LEAST ONE NON-CORROSIVE ORGANIC LIQUIUD WHICH IS A SOLVENT FOR THE POLYVINYL BUTYRAL; FROM 0.09 TO 0.15 PART OF CHROMIUM TRIOXIDE; FROM 1.4 TO 1.8 PARTS OF ALUMINUM POWDER OF LESS THAN 100 MESH; AND FROM 6.15 TO 9.05 PARTS OF WATER; WHEREIN THE AFOREMENTIONED PARTS ARE PARTS BY WEIGHT BASED ON A TOTAL OF 100 PARTS BY WEIGHT OF PRIMER AND WHEREIN THE VISCOSITY OF THE PRIMER IS FROM 10 TO 500 CENTIPOISES.
Claim 2
Dependent Claim
95 words
A SPRAYABLE WELDABLE ANTI-CORROSIVE PRIMER COMPRISING FROM 7.3 TO 10.5 PARTS OF POLYVINYL BUTYRAL; FROM 76.5 TO 85 PARTS OF AT LEAST ONE NON-CORROSIVE ORGANIC LIQUIUD WHICH IS A SOLVENT FOR THE POLYVINYL BUTYRAL; FROM 0.09 TO 0.15 PART OF CHROMIUM TRIOXIDE; FROM 1.4 TO 1.8 PARTS OF ALUMINUM POWDER OF LESS THAN 100 MESH; AND FROM 6.15 TO 9.05 PARTS OF WATER; WHEREIN THE AFOREMENTIONED PARTS ARE PARTS BY WEIGHT BASED ON A TOTAL OF 100 PARTS BY WEIGHT OF PRIMER AND WHEREIN THE VISCOSITY OF THE PRIMER IS FROM 10 TO 500 CENTIPOISES.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |