Patent US3940134A successfully refreshed from Google Patents.
US2982702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pretreating uranium for metal plating
Assignee: Individual
•
Filing: 1950-05-09
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Granted: 1961-05-02
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Expires: 1970-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Wehrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:04
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR PRETREATING URANIUM FOR METAL PLATING, COMPRISING ANODICALLY TREATING A URANIUM ARTICLE AT A CURRENT DENSITY OF FROM 60 TO 100 AMPERES/FT2 IN AN AQUEOUS SOLUTION OF ABOUT 10% POLYCARBOXYLIC ACID, FROM 1 TO 5% BY WEIGHT OF GLYCERINE AND FROM 1 TO 5% BY WEIGHT OF HYDROCHLORIC ACID FOR FROM 30 SECONDS TO 15 MINUTES, SAID SOLUTION HAVING A TEMPERATURE OF FROM 20* TO 75* C.
Claim 2
Dependent Claim
69 words
A PROCESS FOR PRETREATING URANIUM FOR METAL PLATING, COMPRISING ANODICALLY TREATING A URANIUM ARTICLE AT A CURRENT DENSITY OF FROM 60 TO 100 AMPERES/FT2 IN AN AQUEOUS SOLUTION OF ABOUT 10% POLYCARBOXYLIC ACID, FROM 1 TO 5% BY WEIGHT OF GLYCERINE AND FROM 1 TO 5% BY WEIGHT OF HYDROCHLORIC ACID FOR FROM 30 SECONDS TO 15 MINUTES, SAID SOLUTION HAVING A TEMPERATURE OF FROM 20* TO 75* C.
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |