Patent US2497883A successfully refreshed from Google Patents.
US2497883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic computer
Assignee: Unisys Corp
•
Filing: 1943-01-28
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Granted: 1950-02-21
•
Expires: 1963-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:32
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB291083A
Cited
US1794393A
Cited
US1869209A
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US2019594A
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US2149727A
Cited
US2111607A
Cited
US2100375A
Cited
GB520228A
Cited
US2171216A
Cited
US2178333A
Cited
US2179915A
Cited
US2296353A
Cited
US2425405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |