US2055963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making thick deposits of electrolytic chromium and the separation thereof from the cathode surface
Assignee: Individual
•
Filing: 1935-10-02
•
Granted: 1936-09-29
•
Expires: 1955-10-02
Abstract
No abstract record available.
Inventors
- 👤 John W Boss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:03
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/06; C25C7/08; Y; Y10; Y10T; Y10T156/00; Y10T156/11; Y10T156/1153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-09-29 | 1940-03-30 | 1940-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-29 | 1944-03-30 | 1944-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-29 | 1948-03-30 | 1948-09-29 | $7700.00 | Window Closed / Lapsed |