US3242093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for removing surface oxidation from metal surfaces
Assignee: Bayer Corp
•
Filing: 1963-10-07
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Granted: 1966-03-22
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Compton Walter Ames
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:04
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A WATER-SOLUBLE, METAL TREATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 0.5 TO 5.0 PARTS DIAMMONIUM CITRATE 2.5 TO 10.0 PARTS CITRIC ACID, 2.0 TO 10.0 PARTS SODIUM BICARBONATE AND 0.25 TO 2.0 PARTS OF A SOLID, WATERSOLUBLE, NON-IONIC POLYOXPROPYLENE-POLYOXYETHYLENE SURFACTANT, SAID PARTS BEING BY WEIGHT.
Claim 2
Dependent Claim
45 words
A WATER-SOLUBLE, METAL TREATING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 0.5 TO 5.0 PARTS DIAMMONIUM CITRATE 2.5 TO 10.0 PARTS CITRIC ACID, 2.0 TO 10.0 PARTS SODIUM BICARBONATE AND 0.25 TO 2.0 PARTS OF A SOLID, WATERSOLUBLE, NON-IONIC POLYOXPROPYLENE-POLYOXYETHYLENE SURFACTANT, SAID PARTS BEING BY WEIGHT.
References Cited (Backward Citations)
US2497057A
Cited
US1523741A
Cited
US1554483A
Cited
US2169344A
Cited
US2978026A
Cited
GB896159A
Cited
US3081267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |