Patent US2817265A successfully refreshed from Google Patents.
US2817265A
Expired / Lapsed
US
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Light dividing apparatus
Assignee: RCA Corp
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Filing: 1953-11-25
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Granted: 1957-12-24
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Expires: 1973-11-25
Abstract
No abstract record available.
Inventors
- 👤 Rd Frank D Covely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
H; H03; H03K; H03K21/00; H04; H04N; H04N25/00; H04N25/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE435706C
Cited
US2415191A
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US2443722A
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US2560351A
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US2494441A
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US2661902A
Cited
US2648250A
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US2724737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |