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Patent US2458748A successfully refreshed from Google Patents.
US2458748A
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Hermetic seal for electric terminals and the like
Assignee: Stupakoff Ceramic & Manufacturing Co
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Filing: 1945-05-01
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Granted: 1949-01-11
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Expires: 1965-05-01
Abstract
No abstract record available.
Inventors
- 👤 Semon H Stupakoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:41
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32; H01J5/40; H01J5/42; H01J2893/00; H01J2893/0033; H01J2893/0034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US758986A
Cited
US2107353A
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US2079354A
Cited
US2125315A
Cited
US2332014A
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US2305901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |