US2679561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaking device
Assignee: Telemecanique SA
•
Filing: 1952-06-17
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Granted: 1954-05-25
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Expires: 1972-06-17
Abstract
No abstract record available.
Inventors
- 👤 Thompson Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:49
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/50; H01H1/54; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/225
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |