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Patent US3307979A successfully refreshed from Google Patents.
US3307979A
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Phosphating solutions
Assignee: MAN-GILL CHEMICAL COMPANY AN OH CORP
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Filing: 1965-10-11
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Granted: 1967-03-07
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Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Wesley B Upham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:46
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/22; C23C22/12; C23C22/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN AQUEOUS PHOSPHATING SOLUTION HAVING A TOTAL ACIDITY WITHIN THE RANGE FROM ABOUT 5 TO 100 POINTS WHEREIN THE ACTIVE INGREDIENTS CONSIST ESSENTIALLY OF ZINC ION, PHOSPHATE ION, NITRATE ION, AND ION SELECTED FROM THE GROUP CONSISTING OF LITHIUM, BERYLIUM, MAGNESIUM, CALCIUM, STRONTIUM, CADMIUM, AND BARIUM IONS, AND FROM ABOUT 0.002 TO ABOUT 5.0% OF THE ANION OF A HYDROXY-ALIPHATIC CARBOXYLIC ACID HAVING 3 TO ABOUT 20 CARBON ATOMS, SAID ANION HAVING NOT MORE THAN TWO HYDROXY GROUPS IF IT CONTAINS FIVE OR MORE CARBON ATOMS.
Claim 2
Dependent Claim
86 words
AN AQUEOUS PHOSPHATING SOLUTION HAVING A TOTAL ACIDITY WITHIN THE RANGE FROM ABOUT 5 TO 100 POINTS WHEREIN THE ACTIVE INGREDIENTS CONSIST ESSENTIALLY OF ZINC ION, PHOSPHATE ION, NITRATE ION, AND ION SELECTED FROM THE GROUP CONSISTING OF LITHIUM, BERYLIUM, MAGNESIUM, CALCIUM, STRONTIUM, CADMIUM, AND BARIUM IONS, AND FROM ABOUT 0.002 TO ABOUT 5.0% OF THE ANION OF A HYDROXY-ALIPHATIC CARBOXYLIC ACID HAVING 3 TO ABOUT 20 CARBON ATOMS, SAID ANION HAVING NOT MORE THAN TWO HYDROXY GROUPS IF IT CONTAINS FIVE OR MORE CARBON ATOMS.
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |