US3558443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential chlorinated hydrocarbonchromic acid preconditioning for plating polyolefin articles
Assignee: Avisun Corp
•
Filing: 1967-05-03
•
Granted: 1971-01-26
•
Expires: 1987-05-03
Abstract
Abstract IN A PROCESS FOR ELECTROPLATING POLYOLEFIN ARTICLES WHEREIN THE ARTICLE IS TREATED WITH AN ETCHING SOLUTION COMPRISING A STRONG MINERAL ACID, FOLLOWED BY TREATMENT WITH A TIN SALT, A NOBLE METAL SALT SOLUTION, AND AN ELECTROLESS NICKEL OR COPPER PLATING SOLUTION, FOLLOWED BY ELECTROPLATING, THE ADHESION OF THE METAL TO THE ARTICLE IS ENHANCED BY CONTACTING THE ARTICLE WITH A CHLORINATED HYDROCARBON PRIOR TO CONTACTING WITH THE ETCHING SOLUTION.
Inventors
- 👤 Habet M Khelghatian
- 👤 James E Fitzpatrick
- 👤 James L Jezl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:40
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C23C18/26; Y; Y10; Y10S; Y10S205/00; Y10S205/924; Y10S205/927
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |