Patent US2483551A successfully refreshed from Google Patents.
US2483551A
Expired / Lapsed
US
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Data transfer mechanism for tabulators and the like
Assignee: CONTROL INSTR CO Inc
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Filing: 1947-09-20
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Granted: 1949-10-04
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Expires: 1967-09-20
Abstract
No abstract record available.
Inventors
- 👤 Earl E Libman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:37
CPC Classifications
H; H01; H01R; H01R29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US252395A
Cited
US2041589A
Cited
US2120103A
Cited
US2111118A
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US2286812A
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US2353061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |