US2817824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card switching device
Assignee: RCA Corp
•
Filing: 1952-11-21
•
Granted: 1957-12-24
•
Expires: 1972-11-21
Abstract
No abstract record available.
Inventors
- 👤 James E Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:35
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/0014; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K7/00; G06K7/06; G06K7/065; H; H04; H04N; H04N7/00; H04N7/16; H04N7/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1760417A
Cited
US1739087A
Cited
DE555150C
Cited
US2353061A
Cited
US2484642A
Cited
US2536155A
Cited
US2586710A
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 |