US2781982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reeling system
Assignee: RCA Corp
•
Filing: 1952-06-02
•
Granted: 1957-02-19
•
Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Isom Warren Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:06
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/42; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1891738A
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US1843972A
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US1991472A
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US1986053A
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US1936043A
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US1957525A
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FR825051A
Cited
US2284150A
Cited
US2176828A
Cited
US2576710A
Cited
DE861199C
Cited
FR1055220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |