US3374486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information retrieval system
Assignee: Individual
•
Filing: 1965-01-15
•
Granted: 1968-03-19
•
Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Vance R Wanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/903; G06F16/90335; G06F16/90348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2996699A
Cited
US2967296A
Cited
US3030609A
Cited
US3181123A
Cited
US3107343A
Cited
US3229255A
Cited
US3197742A
Cited
US3221308A
Cited
US3261000A
Cited
US3195109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |