US2871289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error-checking system
Assignee: General Electric Co
•
Filing: 1955-10-10
•
Granted: 1959-01-27
•
Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Cox Bonnar
- 👤 William H Kautz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/1608; G06F11/1616; G06K; G06K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1930525A
Cited
US2242196A
Cited
US2495705A
Cited
US2700735A
Cited
US2640872A
Cited
US2688656A
Cited
US2724739A
Cited
US2702380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |