US3281266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless plating
Assignee: Honeywell Inc
•
Filing: 1963-04-12
•
Granted: 1966-10-25
•
Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Richard C Colonel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:14
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF CHEMICALLY NICKEL PLATING A CATALYTIC MATERIAL WHICH COMPRISES PREPARING AN AQUEOUS BATH CONSISTING ESSENTIALLY OF NICKEL IONS, A THIO COMPOUND, AND HYPOPHOSPHITE IONS, SAID HYPOPHOSPHITE ION CONCENTRATION BEING IN EXCESS OF ABOUT 0.3 MOLAR AND SAID THIO COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOUREA AND THIOACETAMIDE, HEATING SAID BATH TO NEAR BOILING WHILE BUBBLING A GAS FORM THE GROUP CONSISTING OF AIR AND OXYGEN THROUGH SAID BATH AT A RATE IN EXCESS OF 200 CC./MIN./ GALLON, IMMERSING SAID MATERIAL IN SAID BATH, AND ALLOWING SAID MATERIAL TO REMAIN IN SAID BATH UNTIL THE DESIRED THICKNESS OF METAL IS DEPOSITED THEREON.
Claim 2
Independent Claim
104 words
THE METHOD OF CHEMICALLY NICKEL PLATING A CATALYTIC MATERIAL WHICH COMPRISES PREPARING AN AQUEOUS BATH CONSISTING ESSENTIALLY OF NICKEL IONS, A THIO COMPOUND, AND HYPOPHOSPHITE IONS, SAID HYPOPHOSPHITE ION CONCENTRATION BEING IN EXCESS OF ABOUT 0.3 MOLAR AND SAID THIO COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOUREA AND THIOACETAMIDE, HEATING SAID BATH TO NEAR BOILING WHILE BUBBLING A GAS FORM THE GROUP CONSISTING OF AIR AND OXYGEN THROUGH SAID BATH AT A RATE IN EXCESS OF 200 CC./MIN./ GALLON, IMMERSING SAID MATERIAL IN SAID BATH, AND ALLOWING SAID MATERIAL TO REMAIN IN SAID BATH UNTIL THE DESIRED THICKNESS OF METAL IS DEPOSITED THEREON.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |