Patent US4085466A successfully refreshed from Google Patents.
Patent US2448470A successfully refreshed from Google Patents.
US2448470A
Expired / Lapsed
US
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Latch-trip type circuit breaker
Assignee: METROPOLITAN DEVICE Corp
•
Filing: 1941-09-25
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Granted: 1948-08-31
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Expires: 1961-09-25
Abstract
No abstract record available.
Inventors
- 👤 Albert B Rypinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:09
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US603594A
Cited
US923839A
Cited
US1728551A
Cited
US1531722A
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US1728038A
Cited
US1872122A
Cited
US1763197A
Cited
FR652228A
Cited
US1812843A
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US1812845A
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FR695442A
Cited
US1909057A
Cited
US1966051A
Cited
US2134593A
Cited
US2170412A
Cited
US2260583A
Cited
US2281950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |