Patent US3416030A successfully refreshed from Google Patents.
US3416030A
Expired / Lapsed
US
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Navigational lantern system and lamp changer
Assignee: US Filter Wallace and Tiernan Inc
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Filing: 1966-06-16
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Granted: 1968-12-10
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 Conkling William Collins
- 👤 Rebucci Eugene Leroy
- 👤 Jr Edward William Wittke
- 👤 Campbell George Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:33
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/04; B; B63; B63B; B63B45/00
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |