Patent US2987453A successfully refreshed from Google Patents.
US2987453A
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Method of electrodepositing chromium
Assignee: Harshaw Chemical Co
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Filing: 1959-04-14
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Granted: 1961-06-06
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Expires: 1979-04-14
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:21
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/10; C25D17/06; C25D17/08; C25D5/00; C25D5/48; C25D5/50; C25D3/00; C25D3/02; C25D3/04; C25D3/12; C25D3/50; C25D5/10; C25D5/12; C25D5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE METHOD OF ELECTRODEPOSITING CHROMIUM, INCLUDING THE STEPS OF SUSPENDING THE OBJECT TO BE PLATED IN A CHROMIUM PLATING BATH EMPLOYING A PLATINUM COATED TITANIUM AUXILIARY ANODE, SAID AUXILIARY ANODE BEING PREPARED BY ELECTROPLATING A PLATINUM COATING ON A TITANIUM BASE AND THEN HEAT TREATING THE COATED BASE AT A TEMPERATURE OF 400*C. TO 800*C.
Claim 2
Independent Claim
55 words
THE METHOD OF ELECTRODEPOSITING CHROMIUM, INCLUDING THE STEPS OF SUSPENDING THE OBJECT TO BE PLATED IN A CHROMIUM PLATING BATH EMPLOYING A PLATINUM COATED TITANIUM AUXILIARY ANODE, SAID AUXILIARY ANODE BEING PREPARED BY ELECTROPLATING A PLATINUM COATING ON A TITANIUM BASE AND THEN HEAT TREATING THE COATED BASE AT A TEMPERATURE OF 400*C. TO 800*C.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |