Patent US2732452A successfully refreshed from Google Patents.
US2732452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switchgear
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:02
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01H50/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309822A
Cited
DE434000C
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US1280661A
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US1729876A
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US1779659A
Cited
US1763116A
Cited
US2071595A
Cited
US2145327A
Cited
US2231974A
Cited
US2255886A
Cited
US2424308A
Cited
US2524287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |