US2652196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire recording storage mechanism for bookkeeping machines
Assignee: Unisys Corp
•
Filing: 1949-05-20
•
Granted: 1953-09-15
•
Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
- 👤 John L Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:18
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2453932A
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US1930252A
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US2080100A
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US2338636A
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US2229905A
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US2155928A
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US2416625A
Cited
US2485730A
Cited
US2439446A
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US2540654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |