US3666527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electroless deposition of metals with improved sensitizer
Assignee: RCA Corp
•
Filing: 1970-07-31
•
Granted: 1972-05-30
•
Expires: 1990-07-31
Abstract
Abstract METHOD FOR AUTOCATALYTICALLY ELECTROLESSLY PLATING A DIELECTRIC SURFACE WITH A METAL SUCH AS NICKEL, COBALT OR COPPER COMPRISING SENSITIZING THE SURFACE WITH AN IMPORVED SENSITIZING SOLUTION COMPRISING BOTH DIVALENT TIN ION AND TETRAVALENT TIN ION, THE SOLUTION HAVING A PH LESS THAN ABOUT 1.5, TREATING THE SENSITIZED SURFACE WITH A CATALYZING SOLUTION TO PROVIDE CATALYTIC NUCLEATING CENTERS, AND PLATING THE METAL ON THE CATALYZED SURFACE. THE IMPROVED SENSITIZING SOLUTION PERMITS PLATING ON SMOOTH, DENSE, WATER REPELLENT PLASTIC SURFACES SUCH AS TEFLON, LUCITE, SILICONE RUBBERS AND MYLAR.
Inventors
- 👤 Nathan Feldstein
- 👤 Thomas Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/28; C23C18/285
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |