US3095379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal cleaning compositions
Assignee: Individual
•
Filing: 1960-07-26
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Granted: 1963-06-25
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Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 Schwartz Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/32; C11D7/00; C11D7/02; C11D7/04; C11D7/08; C23; C23G; C23G1/00; C23G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METAL CLEANING COMPOSITION CONSISTING ESSENTIALLY OF A DILUTE AQUEOUS SOLUTIION OF A WATER SOLUBLE ACID AND AT LEAST 1/20% OF THE CHEMICAL PRODUCT RESULTING FROM THE REACTION OF CITRIC ACID AND A QUANTITY OF MONETHANOLAMINE WITHIN THE RANGE OF PROPORTIONS OF EQUIMOLAR TO TWICE EQUIMOLAR AT A TEMPERATURE MAINTAINED WITHIN THE RANGE 150*C. TO 180*C. UNTIL EVOLUTION OF GAS CEASES.
Claim 2
Dependent Claim
61 words
A METAL CLEANING COMPOSITION CONSISTING ESSENTIALLY OF A DILUTE AQUEOUS SOLUTIION OF A WATER SOLUBLE ACID AND AT LEAST 1/20% OF THE CHEMICAL PRODUCT RESULTING FROM THE REACTION OF CITRIC ACID AND A QUANTITY OF MONETHANOLAMINE WITHIN THE RANGE OF PROPORTIONS OF EQUIMOLAR TO TWICE EQUIMOLAR AT A TEMPERATURE MAINTAINED WITHIN THE RANGE 150*C. TO 180*C. UNTIL EVOLUTION OF GAS CEASES.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |