Patent US2830280A successfully refreshed from Google Patents.
US2830280A
Expired / Lapsed
US
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Connector receptacle for portable electric lamps
Assignee: Gould National Batteries Inc
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Filing: 1955-05-31
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Granted: 1958-04-08
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Hiram M Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:16
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/06; F21L; F21L4/00; F21L4/08; F21L4/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US952961A
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US1506303A
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US1506302A
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US1964201A
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US2205878A
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US2302248A
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US2538497A
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US2628339A
Cited
DE809676C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |