Patent US2622133A successfully refreshed from Google Patents.
US2622133A
Expired / Lapsed
US
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Sealed electrical circuit components
Assignee: Sprague Electric Co
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Filing: 1950-05-01
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Granted: 1952-12-16
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Expires: 1970-05-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley O Dorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/224; H01C; H01C1/00; H01C1/02; H01C1/024
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) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |