US3245886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating process and self-regulating electroplating baths therefor
Assignee: DEHYDAG DEUTSCHE HYDRIERWERKE G M B H
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Filing: 1963-07-29
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Granted: 1966-04-12
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Michael Gregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:29
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/21; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/42; C25; C25D; C25D21/00; C25D21/12; C25D21/14; C25D3/00; C25D3/02; C25D3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SELF-REGULATING ELECTROPLATING BATH FOR THE ELECTRODEPOSITION OF METALS CAPABLE OF BEING ELECTRODEPOSITED WHICH COMPRISES AN ACID SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE ELECTRODEPOSITED AND DIFFICULTLY SOLUBLE AUXILIARY ELECTROPLATING-ACTIVE ORGANIC ADDITION AGENTS WHICH ARE DIFFICULT TO DISSOLVE, WHOSE SATURATION CONCENTRATION AMOUNTS TO 0.5 TO 500 MG./L. OF BATH LIQUID AND WHOSE CRITICAL CONCENTRATION AMOUNTS TO ABOUT HALF OF SAID SATURATION CONCENTRATION, SAID ADDITION AGENTS BEING COATED ON A SOLID CARRIER, SAID ADDITION AGENTS FURTHER BEING ADDED TO SAID BATH IN MULTIPLE QUANTITIES OF SAID SATURATION CONCENTRATION, WHEREBY THE PORTION OF THE ADDITION AGENT IN EXCESS OF THE SATURATION CONCENTRATION ALWAYS REMAINS IN UNDISSOLVED FORM IN THE BATH.
Claim 2
Dependent Claim
111 words
A SELF-REGULATING ELECTROPLATING BATH FOR THE ELECTRODEPOSITION OF METALS CAPABLE OF BEING ELECTRODEPOSITED WHICH COMPRISES AN ACID SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE ELECTRODEPOSITED AND DIFFICULTLY SOLUBLE AUXILIARY ELECTROPLATING-ACTIVE ORGANIC ADDITION AGENTS WHICH ARE DIFFICULT TO DISSOLVE, WHOSE SATURATION CONCENTRATION AMOUNTS TO 0.5 TO 500 MG./L. OF BATH LIQUID AND WHOSE CRITICAL CONCENTRATION AMOUNTS TO ABOUT HALF OF SAID SATURATION CONCENTRATION, SAID ADDITION AGENTS BEING COATED ON A SOLID CARRIER, SAID ADDITION AGENTS FURTHER BEING ADDED TO SAID BATH IN MULTIPLE QUANTITIES OF SAID SATURATION CONCENTRATION, WHEREBY THE PORTION OF THE ADDITION AGENT IN EXCESS OF THE SATURATION CONCENTRATION ALWAYS REMAINS IN UNDISSOLVED FORM IN THE BATH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |