US2764347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ellerbeck
Assignee: —
•
Filing: —
•
Granted: 1956-09-25
•
Expires: 1973-09-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:31
CPC Classifications
G; G06; G06C; G06C15/00; G06C15/08; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/52; G06F7/535; G06F7/60; G06F7/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1900042A
Cited
US1916611A
Cited
US1964211A
Cited
US1969262A
Cited
US2325388A
Cited
US2399917A
Cited
US2403273A
Cited
US2531208A
Cited
US2687254A
Cited
US2136694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |