US2702135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer apparatus
Assignee: RCA Corp
•
Filing: 1949-05-17
•
Granted: 1955-02-15
•
Expires: 1969-05-17
Abstract
No abstract record available.
Inventors
- 👤 Knapp Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:59
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/46; H01J2893/00; H01J2893/0096; H01J2893/0098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2259728A
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US2293192A
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US2392799A
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US2399360A
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US2557228A
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US2415997A
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US2541574A
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US2599220A
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US2567819A
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US2619238A
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US2567033A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |