US2856334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium plating
Assignee: Tiarco Corp
•
Filing: 1955-11-01
•
Granted: 1958-10-14
•
Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 Paul J Topelian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:34
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/38; C25D5/40; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS OF CHROMIUN ELECTROPLATING AN ARTICLE HAVING A CHROMIUM PLATED SURFACE COMPRISING SUBJECTING SAID SURFACE TO A TREATMENT WITH A HYDROCARBON HALIDE GAS, REMOVING THE ARTICLE FROM THE GASEOUS MEDIUM WHEN THE CHROMIUM SURFACE ASSUMES A GREEN COLOR, ANDD ELECTROPLATING CHROMIUM ON THE CHROMIUM SURFACE OF THE ARTICLE.
Claim 2
Dependent Claim
49 words
A PROCESS OF CHROMIUN ELECTROPLATING AN ARTICLE HAVING A CHROMIUM PLATED SURFACE COMPRISING SUBJECTING SAID SURFACE TO A TREATMENT WITH A HYDROCARBON HALIDE GAS, REMOVING THE ARTICLE FROM THE GASEOUS MEDIUM WHEN THE CHROMIUM SURFACE ASSUMES A GREEN COLOR, ANDD ELECTROPLATING CHROMIUM ON THE CHROMIUM SURFACE OF THE ARTICLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |