US2468582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer
Assignee: Individual
•
Filing: 1946-03-11
•
Granted: 1949-04-26
•
Expires: 1966-03-11
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/02; G06G1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769044A
Cited
US922465A
Cited
GB191228603A
Cited
US1338588A
Cited
US1849058A
Cited
US2103332A
Cited
US2358856A
Cited
US2445464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |