Patent US3097118A successfully refreshed from Google Patents.
US3097118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product for removing rust and coating materials
Assignee: Individual
•
Filing: 1959-11-09
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Granted: 1963-07-09
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:58
CPC Classifications
C; C23; C23C; C23C22/00; C09; C09D; C09D133/00; C09D133/04; C09D133/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A COMPOSITION OF MATTER FOR COATING AND PROTECTING METALS FROM RUST AND FOR REMOVING RUST THEREFROM CONSISTING ESSENTIALLY OF PHOSPHORIC ACID 1,650 PARTS BY WEIGHT, IRON PHOSPHATE 18 PARTS BY WEIGHT, ZINC CHROMATE 52 PARTS BY WEIGHT, MANGANESE SULFATE 46 PARTS BY WEIGHT AND WATER 2,763 PARTS BY WEIGHT, MIXED WITH POLYACRYLIC ACID ESTER WATER EMULSION, 50% TOTAL SOLIDS.
Claim 2
Dependent Claim
59 words
A COMPOSITION OF MATTER FOR COATING AND PROTECTING METALS FROM RUST AND FOR REMOVING RUST THEREFROM CONSISTING ESSENTIALLY OF PHOSPHORIC ACID 1,650 PARTS BY WEIGHT, IRON PHOSPHATE 18 PARTS BY WEIGHT, ZINC CHROMATE 52 PARTS BY WEIGHT, MANGANESE SULFATE 46 PARTS BY WEIGHT AND WATER 2,763 PARTS BY WEIGHT, MIXED WITH POLYACRYLIC ACID ESTER WATER EMULSION, 50% TOTAL SOLIDS.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |