Patent US2558631A successfully refreshed from Google Patents.
US2558631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suter
Assignee: —
•
Filing: —
•
Granted: 1951-06-26
•
Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:53
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/14; G06M1/143; G06C; G06C15/00; G06C15/26; G09; G09B; G09B19/00; G09B19/02; G09B23/00; G09B23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312014A
Cited
US1508762A
Cited
US1853054A
Cited
US2089682A
Cited
US1842584A
Cited
US2388209A
Cited
CH217539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |