US2702252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing rhodium metal on printed circuits
Assignee: Individual
•
Filing: 1953-10-02
•
Granted: 1955-02-15
•
Expires: 1973-10-02
Abstract
No abstract record available.
Inventors
- 👤 Lydia A Suchoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/244; C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/42; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12396; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF COATING THE COPPER DIAGRAM OF A PRINTED CIRCUIT WITH RHODIUM COMPRISING DIPPING THE PRINTED CIRCUT INTO A BATH CONTAING A RHODIUM SALT, ALLOWING THE RHODIUM TO BE PRECIPITATED ON THE COPPER SURFACE AND REMOVING THE PRINTED CIRCUIT FROM THE BATH BEFORE THE RHODIUM FILM STARTS TO BECOME SPONGY.
Claim 2
Independent Claim
51 words
A METHOD OF COATING THE COPPER DIAGRAM OF A PRINTED CIRCUIT WITH RHODIUM COMPRISING DIPPING THE PRINTED CIRCUT INTO A BATH CONTAING A RHODIUM SALT, ALLOWING THE RHODIUM TO BE PRECIPITATED ON THE COPPER SURFACE AND REMOVING THE PRINTED CIRCUIT FROM THE BATH BEFORE THE RHODIUM FILM STARTS TO BECOME SPONGY.
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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |