US2860089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electro depositing zinc
Assignee: Hull R O and Co Inc
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Filing: 1956-08-09
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Granted: 1958-11-11
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Expires: 1976-08-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:04
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
IN THE PROCESS OF ELECTROPLATING ZINC, THE STEP OF DEPOSITING ZINC FROM AN AQUEOUS CYANIDE ZINC BATH CONTAINING AN ADDITION AGENT COMPRISING 0.04 TO 0.4 GRAM PER LITER OF POLYVINYL ALCOHOL AND FROM 0.1 TO 1.0 GRAM PER LITER OF A BATH SOLUBLE POLYEPOXYAMINE RESULTING FROM THE CONDENSATION REACTION OF EPICHLORHYDRIN WITH A PRIMARY AMINE.
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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |