Patent US2756933A successfully refreshed from Google Patents.
US2756933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gangx z
Assignee: —
•
Filing: —
•
Granted: 1956-07-31
•
Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
G; G06; G06C; G06C7/00; G06C7/02; G06C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1015842A
Cited
US1534938A
Cited
US1817451A
Cited
US1936903A
Cited
US2271240A
Cited
US2467441A
Cited
US882614A
Cited
US944841A
Cited
US2303692A
Cited
US2498439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |