US3147244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for treating materials
Assignee: Armour and Co
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Filing: 1961-04-05
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Granted: 1964-09-01
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Expires: 1981-04-05
Abstract
No abstract record available.
Inventors
- 👤 Byron E Marsh
- 👤 Jungermann Eric
- 👤 Charles E Tippett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:40
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/068; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/16; C11D3/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SUBSTANTIALLY NON-CORROSIVE METAL CLEANING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF ABOUT 2 TO 20% BY WEIGHT BASED ON TOTAL SOLUTION, OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULFURIC, PHOSPHORIC, HYDROCHLORIC, SULFAMIC AND CITRIC ACIDS, AND ABOUT 0.01 TO 2.0% BY WEIGHT BASED ON TOTAL SOLUTION, OF A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
55 words
A SUBSTANTIALLY NON-CORROSIVE METAL CLEANING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF ABOUT 2 TO 20% BY WEIGHT BASED ON TOTAL SOLUTION, OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULFURIC, PHOSPHORIC, HYDROCHLORIC, SULFAMIC AND CITRIC ACIDS, AND ABOUT 0.01 TO 2.0% BY WEIGHT BASED ON TOTAL SOLUTION, OF A COMPOUND HAVING THE GENERAL FORMULA:
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |