US2733754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid walker
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:35
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/04; A47D13/043; A61; A61H; A61H3/00; A61H3/04; A61H2201/00; A61H2201/01; A61H2201/0161; A61H2201/16; A61H2201/1602; A61H2201/1614; A61H2201/1628; A61H2201/1633; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |