US2463718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1944-09-18
•
Granted: 1949-03-08
•
Expires: 1964-09-18
Abstract
No abstract record available.
Inventors
- 👤 Roy G Sands
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:21
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US433744A
Cited
US1223117A
Cited
US1373128A
Cited
US1980756A
Cited
US2124364A
Cited
US2141490A
Cited
US2168769A
Cited
US2271813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |