US2801797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computing device
Assignee: —
•
Filing: —
•
Granted: 1957-08-06
•
Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:08
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB247543A
Cited
US510319A
Cited
US2415581A
Cited
US767087A
Cited
US996039A
Cited
US1209878A
Cited
US1608409A
Cited
US2533628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |