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US2696552A
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Variable intensity light indicator
Assignee: SMITHS AMERICAN Corp
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Filing: 1952-05-02
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Granted: 1954-12-07
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Expires: 1972-05-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Meredith
- 👤 Wood Francis Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:52
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |