US2685532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas plating with chromium hexacarbonyl
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1951-10-08
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Granted: 1954-08-03
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Expires: 1971-10-08
Abstract
No abstract record available.
Inventors
- 👤 Pawlyk Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:46
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS OF PLATING A METALLIC OBJECT WITH CHROMIUM COMPRISING THE STEPS OF HEATING THE OBJECT TO BE PLATED TO A TEMPERATURE ABOVE THE DECOMPOSITION POINT OF GASEOUS CHROMIUM HEXACARBONYL, AND CONTACTING THE HEATED OBJECT WITH HEAT-VAPORIZED FLOWING GASEOUS CHROMIUM HEXA-
Claim 2
Dependent Claim
41 words
A PROCESS OF PLATING A METALLIC OBJECT WITH CHROMIUM COMPRISING THE STEPS OF HEATING THE OBJECT TO BE PLATED TO A TEMPERATURE ABOVE THE DECOMPOSITION POINT OF GASEOUS CHROMIUM HEXACARBONYL, AND CONTACTING THE HEATED OBJECT WITH HEAT-VAPORIZED FLOWING GASEOUS CHROMIUM HEXA-
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |