US2429902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing electroplated sheets
Assignee: Chromium Corp of America
•
Filing: 1943-01-15
•
Granted: 1947-10-28
•
Expires: 1963-01-15
Abstract
No abstract record available.
Inventors
- 👤 Martin M Sternfels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:19
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1416692A
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US1425184A
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US1600257A
Cited
US1731415A
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AT119031B
Cited
US2044415A
Cited
GB465821A
Cited
US2051928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |