Patent US4924852A successfully refreshed from Google Patents.
Patent FR759730A successfully refreshed from Google Patents.
Patent US2843503A successfully refreshed from Google Patents.
Patent US2666577A successfully refreshed from Google Patents.
US2666577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer board
Assignee: Individual
•
Filing: 1952-08-12
•
Granted: 1954-01-19
•
Expires: 1972-08-12
Abstract
No abstract record available.
Inventors
- 👤 John W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:25
CPC Classifications
G; G06; G06G; G06G1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |