Patent US4023466A successfully refreshed from Google Patents.
Patent US3338741A successfully refreshed from Google Patents.
US3338741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless nickel plating
Assignee: Motors Liquidation Co
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Filing: 1963-11-06
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Granted: 1967-08-29
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Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 Katz Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:54
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF ELECTROLESS PLATING WORKPIECES WITH A UNIFORM ADHERENT, SMOOTH AND BRIGHT DECORATIVE NICKEL COATING, SAID METHOD COMPRISING THE STEPS OF PLACING AT LEAST ONE WORKPIECE IN AN AQUEOUS BATH HAVING A PH IN EXCESS OF 2, SAID BATH CONTAINING DISSOLVED NICKEL ION AND SUFFICIENT BUFFERS TO MAINTAIN THE BATH ABOVE PH 2 DURING CHEMICAL REDUCTION OF AT LEAST A MAJOR PROPORTION OF THE DISSOLVED NICKEL IN THE BATH, PROVIDING A PRESSURIZED GASEOUS REDUCING ENVIRONMENT FOR SAID BATH CONTAINING SAID WORKPIECE, HEATING SAID BATH CONTAINING SAID WORKPIECE TO INDUCE DEPOSITION OF SAID NICKEL ON SAID WORKPIECE, AND REGULATING THE TEMPERATURE OF SAID BATH SUCH THAT SAID TEMPERATURE VARIES INVERSELY WITH RESPECT TO THE CONCENTRATION OF DISSOLVED NICKEL ION THEREIN TO PRODUCE A SMOOTH, BRIGHT DECORATIVE NICKEL COATING ON SAID WORKPIECE.
Claim 2
Independent Claim
131 words
THE METHOD OF ELECTROLESS PLATING WORKPIECES WITH A UNIFORM ADHERENT, SMOOTH AND BRIGHT DECORATIVE NICKEL COATING, SAID METHOD COMPRISING THE STEPS OF PLACING AT LEAST ONE WORKPIECE IN AN AQUEOUS BATH HAVING A PH IN EXCESS OF 2, SAID BATH CONTAINING DISSOLVED NICKEL ION AND SUFFICIENT BUFFERS TO MAINTAIN THE BATH ABOVE PH 2 DURING CHEMICAL REDUCTION OF AT LEAST A MAJOR PROPORTION OF THE DISSOLVED NICKEL IN THE BATH, PROVIDING A PRESSURIZED GASEOUS REDUCING ENVIRONMENT FOR SAID BATH CONTAINING SAID WORKPIECE, HEATING SAID BATH CONTAINING SAID WORKPIECE TO INDUCE DEPOSITION OF SAID NICKEL ON SAID WORKPIECE, AND REGULATING THE TEMPERATURE OF SAID BATH SUCH THAT SAID TEMPERATURE VARIES INVERSELY WITH RESPECT TO THE CONCENTRATION OF DISSOLVED NICKEL ION THEREIN TO PRODUCE A SMOOTH, BRIGHT DECORATIVE NICKEL COATING ON SAID WORKPIECE.
References Cited (Backward Citations)
US3062680A
Cited
US3147154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |