Patent US2222636A successfully refreshed from Google Patents.
US2945779A
Expired / Lapsed
US
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Treatment of titanium and product, and composition therefor
Assignee: Lord Manufacturing Co
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Filing: 1957-03-07
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Granted: 1960-07-19
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Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Richard J Lipinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:01
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF IMPROVING THE BONDABILITY OF A TITANIUM SURFACE TOWARD ORGANIC POLYMERIC MATERIAL WHICH COMPRISES CONTACTING SAID TITANIUM SURFACE WITH A SOLUTION, AT A PH BELOW 4, OF A NITROSULFONIC ACID AND FLUORIDE IONS IN AN AMOUNT BETWEEN ABOUT 0.1% AND ABOUT 10%, BY WEIGHT, BASED ON THE WEIGHT OF SAID NITROSULFONIC ACID, SAID SOLUTION BEING SUBSTANTIALLY FREE OF STRONG ACID OTHER THAN SAID NITROSULFONIC ACID, NITRIC ACID AND HYDROFLUORIC ACID IN AN AMOUNT TO PROVIDE SAID FLUORIDE IONS, UNTIL SAID TITANIUM SURFACE IS VISIBLY ALTERED THROUGH FORMATION OF A FILM THEREON AND RECOVERING THE TITANIUM WITH SAID FILM ON THE SURFACE THEREOF.
Claim 2
Independent Claim
104 words
THE METHOD OF IMPROVING THE BONDABILITY OF A TITANIUM SURFACE TOWARD ORGANIC POLYMERIC MATERIAL WHICH COMPRISES CONTACTING SAID TITANIUM SURFACE WITH A SOLUTION, AT A PH BELOW 4, OF A NITROSULFONIC ACID AND FLUORIDE IONS IN AN AMOUNT BETWEEN ABOUT 0.1% AND ABOUT 10%, BY WEIGHT, BASED ON THE WEIGHT OF SAID NITROSULFONIC ACID, SAID SOLUTION BEING SUBSTANTIALLY FREE OF STRONG ACID OTHER THAN SAID NITROSULFONIC ACID, NITRIC ACID AND HYDROFLUORIC ACID IN AN AMOUNT TO PROVIDE SAID FLUORIDE IONS, UNTIL SAID TITANIUM SURFACE IS VISIBLY ALTERED THROUGH FORMATION OF A FILM THEREON AND RECOVERING THE TITANIUM WITH SAID FILM ON THE SURFACE THEREOF.
References Cited (Backward Citations)
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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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |