US2951924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load interrupting device
Assignee: McGraw Edison Co
•
Filing: 1958-08-21
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Granted: 1960-09-06
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Expires: 1978-08-21
Abstract
No abstract record available.
Inventors
- 👤 Fred J Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:50
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/18
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) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |