US3517121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic periscope panning apparatus
Assignee: United States Department of the Navy
•
Filing: 1967-06-29
•
Granted: 1970-06-23
•
Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Edward A Petrocelli
- 👤 Joseph R Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:51
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063; H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2244239A
Cited
US2611819A
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US2851519A
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US3039204A
Cited
US3234665A
Cited
US3324251A
Cited
US3368034A
Cited
US3420953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |