Patent US2562049A successfully refreshed from Google Patents.
US2562049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calculating machine
Assignee: —
•
Filing: —
•
Granted: 1951-07-24
•
Expires: 1968-07-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:13
CPC Classifications
G; G06; G06C; G06C15/00; G06C15/04; G06C15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2320399A
Cited
US1580492A
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US1813037A
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US2361002A
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US978168A
Cited
US1986137A
Cited
US2034062A
Cited
US2068579A
Cited
US2017641A
Cited
US2121683A
Cited
US2221686A
Cited
US2308292A
Cited
US2330689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |