US1031191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric foot-switch.
Assignee: Unisys Corp
•
Filing: 1910-09-19
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Granted: 1912-07-02
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Expires: 1930-09-19
Abstract
No abstract record available.
Inventors
- 👤 Charles August Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:03
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/36; H01H21/40; H01H21/42
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) | 1915-07-02 | 1916-01-01 | 1916-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-07-02 | 1920-01-01 | 1920-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-07-02 | 1924-01-01 | 1924-07-02 | $7700.00 | Window Closed / Lapsed |