US3197345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for phosphatizing metals
Assignee: Hooker Chemical Corp
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Filing: 1963-06-20
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Granted: 1965-07-27
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 William J Vullo
- 👤 Donald H Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:28
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C22/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SUBSTANTIALLY WATER-FREE COMPOSITION OF MATTE SUITABLE FOR PHOSPHATIZING METAL CONSISTING ESSENTIALLY OF A CHLORINATED HYDROCARBON CONTAINING A MINOR PROPORTION OF AN ORGANIC SOLVENT CAPABLE OF DISSOLVING ORTHOPHOSPHORIC ACID IN THE CHLORINATED HYDROCARBON, A PHOSPHATIZING PROPORTION OF ORTHOPHOSPHORIC ACID, AND AN INHIBITING PROPORTION OF AT LEAST 0.01 PERCENT BY WEIGHT OF A NITRATED ORGANIC COMPOUND CONTAINING THE NITRO GROUP, CAPABLE OF INHIBITING THE FORMATION OF A HEAVY PHOSPHATE COATING WHILE ENHANCEING THE FORMATIN OF A HARD, UNIFORMLY THIN PHOSPHATE COATING.
Claim 2
Dependent Claim
80 words
A SUBSTANTIALLY WATER-FREE COMPOSITION OF MATTE SUITABLE FOR PHOSPHATIZING METAL CONSISTING ESSENTIALLY OF A CHLORINATED HYDROCARBON CONTAINING A MINOR PROPORTION OF AN ORGANIC SOLVENT CAPABLE OF DISSOLVING ORTHOPHOSPHORIC ACID IN THE CHLORINATED HYDROCARBON, A PHOSPHATIZING PROPORTION OF ORTHOPHOSPHORIC ACID, AND AN INHIBITING PROPORTION OF AT LEAST 0.01 PERCENT BY WEIGHT OF A NITRATED ORGANIC COMPOUND CONTAINING THE NITRO GROUP, CAPABLE OF INHIBITING THE FORMATION OF A HEAVY PHOSPHATE COATING WHILE ENHANCEING THE FORMATIN OF A HARD, UNIFORMLY THIN PHOSPHATE COATING.
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |