Patent US2950382A successfully refreshed from Google Patents.
US2950382A
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US
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Projection lamp
Assignee: STRONG ELECTRIC CORP
•
Filing: 1956-12-17
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Granted: 1960-08-23
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Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:34
CPC Classifications
F; F21; F21V; F21V14/00; F21V14/08; F21V11/00; F21V11/08; F21V11/10; F21V11/16; F21V11/18; F21V17/00; F21V17/02; F21V29/00; F21V29/50; F21V29/60; F21V29/67; F21V9/00; F21V9/04; F21V9/40; F21W; F21W2131/00; F21W2131/40; F21W2131/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1711983A
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US1654873A
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US2009145A
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US2076240A
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US2137103A
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US2059361A
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US2650292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |