Patent US2411401A successfully refreshed from Google Patents.
US2628264A
Expired / Lapsed
US
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Combined pipe plug receptacle and insulator
Assignee: Individual
•
Filing: 1951-04-04
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Granted: 1953-02-10
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Ray R Esher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1348317A
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US1887448A
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US2015418A
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DE538470C
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US1974297A
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US2106048A
Cited
US2276678A
Cited
US2470886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |