US2543545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition bath for bright zinc
Assignee: Meaker Co
•
Filing: 1948-04-02
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Granted: 1951-02-27
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Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Charles L Faust
- 👤 Arthur E Bearse
- 👤 Andrew W Liger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:39
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN ELECTRODEPOSITION BATH COMPRISING AN AQUEOUS ACID ZINC SULFATE SOLUTION CONTAINING A BUFFERING AGENT AND SULFONATED 8-PHENYLQUINALDINE IN A SUFFCIENT AMOUNT TO OBTAIN IN A BRIGHT ZINC PLATE, SAID BATH HAVING A PH BETWEEN 3.3 AND 4.3.
Claim 2
Dependent Claim
37 words
AN ELECTRODEPOSITION BATH COMPRISING AN AQUEOUS ACID ZINC SULFATE SOLUTION CONTAINING A BUFFERING AGENT AND SULFONATED 8-PHENYLQUINALDINE IN A SUFFCIENT AMOUNT TO OBTAIN IN A BRIGHT ZINC PLATE, SAID BATH HAVING A PH BETWEEN 3.3 AND 4.3.
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) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |