Patent CH395722A successfully refreshed from Google Patents.
US2860233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp socket unit
Assignee: SPENCER RUBBER PRODUCTS Co
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Filing: 1955-02-24
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Granted: 1958-11-11
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Expires: 1975-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
F; F21; F21S; F21S8/00; F21W; F21W2111/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2188623A
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US2208154A
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US2201044A
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US2208155A
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US2099444A
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US2202315A
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US2686868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |