US692735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined electric switch and spark-blow-out mechanism.
Assignee: Individual
•
Filing: 1901-06-17
•
Granted: 1902-02-04
•
Expires: 1921-06-17
Abstract
No abstract record available.
Inventors
- 👤 James R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:00
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/22; H01H33/28; H01H33/30; H01H33/32
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) | 1905-02-03 | 1905-08-05 | 1906-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-02-03 | 1909-08-05 | 1910-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-02-03 | 1913-08-05 | 1914-02-04 | $7700.00 | Window Closed / Lapsed |