US2444745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit control apparatus
Assignee: MATTHEWS W N CORP
•
Filing: 1944-12-26
•
Granted: 1948-07-06
•
Expires: 1964-12-26
Abstract
No abstract record available.
Inventors
- 👤 Carl E Mosley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/22; H01H47/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US485287A
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US2057384A
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US2180701A
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US2125765A
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US2216556A
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US2300901A
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US2394372A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-06 | 1952-01-05 | 1952-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-06 | 1956-01-05 | 1956-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-06 | 1960-01-05 | 1960-07-06 | $7700.00 | Window Closed / Lapsed |