Patent US2275210A successfully refreshed from Google Patents.
Patent US2680210A successfully refreshed from Google Patents.
US2680210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triple sweep scope
Assignee: United States Department of the Navy
•
Filing: 1945-09-18
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Granted: 1954-06-01
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Expires: 1965-09-18
Abstract
No abstract record available.
Inventors
- 👤 Miller Edward
- 👤 Ralph E Meagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189549A
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US2171216A
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US2405238A
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US2368448A
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US2375709A
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US2378604A
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US2312761A
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US2405231A
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US2378383A
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US2403429A
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US2394196A
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US2430570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |