Patent US2900313A successfully refreshed from Google Patents.
US2900313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition materials for improving plating speeds
Assignee: GTE Sylvania Inc
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Filing: 1956-03-06
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Granted: 1959-08-18
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Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward B Sanbestre
- 👤 Edward P Bulan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:09
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR PLATING OF METALS FROM AN ALKALINE PLATING BATH INCLUDING CYANIDE ION AND HYDROXIDE ION, WHICH COMPRISES INCREASING THE SPEED OF OPERATION OF SAID BATH BY ADDING TO SAID BATH AN ADDITION AGENT, SAID ADDITION AGENT CONSISTING OF AMMONIUM MOLYBDATE IN A CONCENTRATION OF ONE TO THREE OUNCES PER GALLON OF SAID BATH AND AT LEAST ONE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF GELATINE IN THE RANGE OF FROM ONE-EIGHTH TO ONE-HALF OUNCE PER GALLON OF BATH AND GLYCERINE IN THE RANGE OF FROM ONE TO TWO OUNCES PER GALLON OF BATH AND PASSING CURRENT THROUGH SAID BATH AT A CURRENT DENSITY IN THE RANGE FROM 80 TO 225 AMPERES PER SQUARE FOOT OF CATHODE.
Claim 2
Dependent Claim
118 words
A PROCESS FOR PLATING OF METALS FROM AN ALKALINE PLATING BATH INCLUDING CYANIDE ION AND HYDROXIDE ION, WHICH COMPRISES INCREASING THE SPEED OF OPERATION OF SAID BATH BY ADDING TO SAID BATH AN ADDITION AGENT, SAID ADDITION AGENT CONSISTING OF AMMONIUM MOLYBDATE IN A CONCENTRATION OF ONE TO THREE OUNCES PER GALLON OF SAID BATH AND AT LEAST ONE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF GELATINE IN THE RANGE OF FROM ONE-EIGHTH TO ONE-HALF OUNCE PER GALLON OF BATH AND GLYCERINE IN THE RANGE OF FROM ONE TO TWO OUNCES PER GALLON OF BATH AND PASSING CURRENT THROUGH SAID BATH AT A CURRENT DENSITY IN THE RANGE FROM 80 TO 225 AMPERES PER SQUARE FOOT OF CATHODE.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |