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US1735834A
Expired / Lapsed
US
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Electric gaslighting device
Assignee: Individual
•
Filing: 1924-03-13
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Granted: 1929-11-12
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Expires: 1944-03-13
Abstract
No abstract record available.
Inventors
- 👤 Mayo John Wayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:38
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/06; F23Q7/10; H; H01; H01H; H01H3/00; H01H3/02; H01H3/0206
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) | 1932-11-11 | 1933-05-13 | 1933-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-11-11 | 1937-05-13 | 1937-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-11-11 | 1941-05-13 | 1941-11-12 | $7700.00 | Window Closed / Lapsed |