US2750918A
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Assignee: McGraw Electric Co
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Filing: 1953-11-10
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Granted: 1956-06-19
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Expires: 1973-11-10
Abstract
No abstract record available.
Inventors
- 👤 Philip E Willman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:31
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/105; H; H01; H01H; H01H19/00; H01H19/02; H01H19/025; Y; Y10; Y10S; Y10S116/00; Y10S116/05; Y10T; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7424; Y10T70/7435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2430616A
Cited
US2619932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |