Patent US2947474A successfully refreshed from Google Patents.
US2947474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computing systems
Assignee: Individual
•
Filing: 1944-12-30
•
Granted: 1960-08-02
•
Expires: 1964-12-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2251973A
Cited
US2319106A
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US2465624A
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US2467646A
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US2408081A
Cited
US2475314A
Cited
US2382994A
Cited
US2428800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |