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US2673897A
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Azimuth test film system and method
Assignee: RCA Corp
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Filing: 1952-01-29
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Granted: 1954-03-30
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Expires: 1972-01-29
Abstract
No abstract record available.
Inventors
- 👤 Rettinger Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:00
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE725830C
Cited
US2524063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |