Patent US644029A successfully refreshed from Google Patents.
US644029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of electrodeposition of metals.
Assignee: Individual
•
Filing: 1899-08-28
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Granted: 1900-02-20
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Expires: 1919-08-28
Abstract
No abstract record available.
Inventors
- 👤 Sherard O Cowper-Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:27
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/12; C25C7/00; Y; Y10; Y10S; Y10S204/00; Y10S204/07
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) | 1903-02-20 | 1903-08-22 | 1904-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-02-20 | 1907-08-22 | 1908-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-02-20 | 1911-08-22 | 1912-02-21 | $7700.00 | Window Closed / Lapsed |