US2764538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of plating chromium over antimony
Assignee: Motors Liquidation Co
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Filing: 1952-09-22
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Granted: 1956-09-25
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Expires: 1972-09-22
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Smart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF ELECTRODEPOSITING A BRIGHT COATING OF CHROMUIM ON AN ARTICLE HAVING AN OUTER SURFACE OF A METAL SELETED FROM THE CLASS CONSISTING OF ANTIMONY AND ANITMONY BASE ALLOYS WHICH COMPRISES IMMERSING SAID ARTICLE FOR A PERIOD OF TIME NOT IN EXCESS OF ONE MINUTE IN A CHROMIC ACID BASE CHROMIUM PLATING BATH MAINTAINED AT A TEMPERATURE OF FROM 110* F. TO 160* F. WHILE NO ELECTRICAL CURRENT IS PASSING THROUGH THE BATH AND THEN ELECTRODEPOSITING BRIGHT CHROMIUM ON THE ARTICLE IN A CHROMIC ACID BASE CHROMIUM PLATING BATH.
Claim 2
Independent Claim
90 words
A METHOD OF ELECTRODEPOSITING A BRIGHT COATING OF CHROMUIM ON AN ARTICLE HAVING AN OUTER SURFACE OF A METAL SELETED FROM THE CLASS CONSISTING OF ANTIMONY AND ANITMONY BASE ALLOYS WHICH COMPRISES IMMERSING SAID ARTICLE FOR A PERIOD OF TIME NOT IN EXCESS OF ONE MINUTE IN A CHROMIC ACID BASE CHROMIUM PLATING BATH MAINTAINED AT A TEMPERATURE OF FROM 110* F. TO 160* F. WHILE NO ELECTRICAL CURRENT IS PASSING THROUGH THE BATH AND THEN ELECTRODEPOSITING BRIGHT CHROMIUM ON THE ARTICLE IN A CHROMIC ACID BASE CHROMIUM PLATING BATH.
References Cited (Backward Citations)
US1565216A
Cited
US2127640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |