US3543019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipoised lamp
Assignee: Individual
•
Filing: 1967-11-17
•
Granted: 1970-11-24
•
Expires: 1987-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jacob Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:36
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/26; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M11/20; F16M11/2007; F16M11/2014; F16M11/2092; F16M11/24; F21S; F21S6/00; F21S6/002; F21S6/003; F16M2200/00; F16M2200/04; F16M2200/044; F16M2200/06; F16M2200/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305285A
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US1190502A
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US1693443A
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US1714003A
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US2003539A
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US2182601A
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US2665870A
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US2694585A
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US2787434A
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FR1112964A
Cited
US3008259A
Cited
US3150891A
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US3188460A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |