US3249409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium plated metal structures
Assignee: EIDP Inc
•
Filing: 1963-01-23
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Granted: 1966-05-03
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 Henry G Mcleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:23
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/14; C25D5/60; C25D5/605; C25D5/611; C25D5/627; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A METAL SUBSTRATE HAVING A PROTECTIVE CORROSION RESISTANT COMPOSITE ELECTROPLATE COMPRISING AN ELECTROPLATE OF COPPER, A BARRIER ELECTROPLATE OF CADMIUM, AND SUCCESSIVE ELECTROPLATES OF NICKEL AND CHROMIUM.
Claim 2
Dependent Claim
27 words
A METAL SUBSTRATE HAVING A PROTECTIVE CORROSION RESISTANT COMPOSITE ELECTROPLATE COMPRISING AN ELECTROPLATE OF COPPER, A BARRIER ELECTROPLATE OF CADMIUM, AND SUCCESSIVE ELECTROPLATES OF NICKEL AND CHROMIUM.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |