US2942154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scheme and apparatus for sectionalizing electrical systems
Assignee: McGraw Edison Co
•
Filing: 1956-10-29
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Granted: 1960-06-21
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Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 Anthony Van Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02H3/063; Y; Y10; Y10S; Y10S62/00; Y10S62/05
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |