US3346522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous solution containing a resin and sucrose for use with solutions of hexavalentchromium coating compounds
Assignee: Pennwalt Corp
•
Filing: 1963-05-23
•
Granted: 1967-10-10
•
Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Ludwig K Schuster
- 👤 Jr Alfonso L Baldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:17
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08L; C08L5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A CONCENTRATE FOR MIXING THE AQUEOUS SOLUTIONS OF HEXAVALENT CHROMIUM COATING COMPOUNDS, SAID CONCENTRATE BEING AN AQUEOUS SOLUTION OF SURCROSE IN WHICH IS DISPERSED AN ACRYLIC RESIN, THE RESIN AND SUCROSE BEING IN THE PROPORTION OF BETWEEN ABOUT 1:2 AND 6:1 BY WEIGHT, AND TOGETHER CONSTITUTING AT LEAST ABOUT 30% BY WEIGHT OF THE CONCENTRATE.
Claim 2
Dependent Claim
55 words
A CONCENTRATE FOR MIXING THE AQUEOUS SOLUTIONS OF HEXAVALENT CHROMIUM COATING COMPOUNDS, SAID CONCENTRATE BEING AN AQUEOUS SOLUTION OF SURCROSE IN WHICH IS DISPERSED AN ACRYLIC RESIN, THE RESIN AND SUCROSE BEING IN THE PROPORTION OF BETWEEN ABOUT 1:2 AND 6:1 BY WEIGHT, AND TOGETHER CONSTITUTING AT LEAST ABOUT 30% BY WEIGHT OF THE CONCENTRATE.
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |