US2537618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit breaker
Assignee: Lucas Support Services Ltd
•
Filing: 1948-01-26
•
Granted: 1951-01-09
•
Expires: 1968-01-26
Abstract
No abstract record available.
Inventors
- 👤 Bourne William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:09
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64; H01H50/643; H01H50/644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |