US2735589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable device for
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; B60T17/222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1632559A
Cited
US1047452A
Cited
US1743056A
Cited
US1892519A
Cited
US1911094A
Cited
US2097985A
Cited
US2145613A
Cited
US2162096A
Cited
US2509570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |