US2939634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer data control system
Assignee: Alwac International Inc
•
Filing: 1953-08-18
•
Granted: 1960-06-07
•
Expires: 1973-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Allan Beek
- 👤 Glenn E Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/30145; G06F9/3016; G06F9/30163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |