Patent US2531150A successfully refreshed from Google Patents.
US2531150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current flat card resolver
Assignee: General Electric Co
•
Filing: 1949-08-16
•
Granted: 1950-11-21
•
Expires: 1969-08-16
Abstract
No abstract record available.
Inventors
- 👤 Murdick Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:49
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/22; G08; G08C; G08C19/00; G08C19/38
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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |