US438167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit-closer
Assignee: Individual
•
Filing: 1890-01-07
•
Granted: 1890-10-14
•
Expires: 1910-01-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas Marcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:14
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/36; H01H21/40; H01H21/42; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288
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) | 1893-10-13 | 1894-04-14 | 1894-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-10-13 | 1898-04-14 | 1898-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-10-14 | 1902-04-15 | 1902-10-15 | $7700.00 | Window Closed / Lapsed |