US3318787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of zinc
Assignee: Udylite Corp
•
Filing: 1964-02-07
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Granted: 1967-05-09
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Rindt Gustav
- 👤 Donald H Becking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:49
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/81; C07D213/84; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A BATH FOR THE ELECTRODEPOSITION OF LUSTROUS ZINC COMPRISING AN AQUEOUS ALKALINE CYANIDE ZINC BATH CONTAINING DISSOLVED THEREIN IN A CONCENTRATION OF ABOUT 0.005 TO ABOUT 5 GRAMS PER LITER OF A BATH-SOLUBLE QUATERNARY NITROGEN COMPOUND CONTAINING AT LEAST ON SUBSTITUTING GROUP SELECTED FROM THE CLASS CONSISTING OF CARBOXYCLIC ESTER, CARBOXAMIDE, SUBSTITUTED CARBOXAMIDE, CARBOXY AND NITRILE GROUPS.
Claim 2
Dependent Claim
57 words
A BATH FOR THE ELECTRODEPOSITION OF LUSTROUS ZINC COMPRISING AN AQUEOUS ALKALINE CYANIDE ZINC BATH CONTAINING DISSOLVED THEREIN IN A CONCENTRATION OF ABOUT 0.005 TO ABOUT 5 GRAMS PER LITER OF A BATH-SOLUBLE QUATERNARY NITROGEN COMPOUND CONTAINING AT LEAST ON SUBSTITUTING GROUP SELECTED FROM THE CLASS CONSISTING OF CARBOXYCLIC ESTER, CARBOXAMIDE, SUBSTITUTED CARBOXAMIDE, CARBOXY AND NITRILE GROUPS.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |