Patent US2576997A successfully refreshed from Google Patents.
US2576997A
Expired / Lapsed
US
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Acid zinc electroplating and electrolyte therefor
Assignee: Poor and Co
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Filing: 1948-06-19
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Granted: 1951-12-04
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Expires: 1968-06-19
Abstract
No abstract record available.
Inventors
- 👤 Allan E Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:24
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C07; C07C; C07C51/00; C07C51/41; C07C51/412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AN ACID ZINC PLATING BATH COMPRISING ZINC SULFATE DISSOLVED IN AN ACIDIC AQUEOUS LIQUID CONTAINING A MEMBER FROM THE GROUP CONSISTING OF ALDONIC ACIDS AND ALDONATES IN A QUANTITY AT LEAST EFFECTIVE TO PRODUCE ANTIBURN EFFECTS IN SAID BATH.
Claim 2
Dependent Claim
39 words
AN ACID ZINC PLATING BATH COMPRISING ZINC SULFATE DISSOLVED IN AN ACIDIC AQUEOUS LIQUID CONTAINING A MEMBER FROM THE GROUP CONSISTING OF ALDONIC ACIDS AND ALDONATES IN A QUANTITY AT LEAST EFFECTIVE TO PRODUCE ANTIBURN EFFECTS IN SAID BATH.
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US1818229A
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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) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |