US3116178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphating solutions
Assignee: MAN-GILL CHEMICAL COMPANY AN OH CORP
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Filing: 1961-05-29
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Granted: 1963-12-31
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Wesley B Upham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:23
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/12; C23C22/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN AQUEOUS PHOSPHATING SOLUTION HAVING A TOTAL ACIDITY WITHIN THE RANGE FROM ABOUT 5 TO ABOUT 100 POINTS AND CONTAINING AS ESSENTIAL INGREDIENTS THE PHOSPHATE ION AND THE ANION OF A POLYHYDROXY ALIPHATIC MONOCARBOXYLIC ACID HAVING AT LEAST 5 CARBON ATOMS AND AT LEAST 3 HYDROXY GROUPS.
Claim 2
Dependent Claim
47 words
AN AQUEOUS PHOSPHATING SOLUTION HAVING A TOTAL ACIDITY WITHIN THE RANGE FROM ABOUT 5 TO ABOUT 100 POINTS AND CONTAINING AS ESSENTIAL INGREDIENTS THE PHOSPHATE ION AND THE ANION OF A POLYHYDROXY ALIPHATIC MONOCARBOXYLIC ACID HAVING AT LEAST 5 CARBON ATOMS AND AT LEAST 3 HYDROXY GROUPS.
References Cited (Backward Citations)
CA469873A
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US1911537A
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US2499261A
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US2481372A
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US2540314A
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US2529178A
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US2975082A
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US2949338A
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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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |