US974220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric insole.
Assignee: ELECTRO-CURO Co
•
Filing: 1908-03-23
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Granted: 1910-11-01
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Expires: 1928-03-23
Abstract
No abstract record available.
Inventors
- 👤 Charles W West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B3/00; A43B3/34; A43B7/146; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0472; A61N1/0484; Y; Y10; Y10S; Y10S224/00; Y10S224/902; Y10S224/929; Y10S224/93
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) | 1913-10-31 | 1914-05-02 | 1914-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-31 | 1918-05-02 | 1918-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-31 | 1922-05-02 | 1922-11-01 | $7700.00 | Window Closed / Lapsed |