US2431542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled traveling device
Assignee: ISABELLA M CARUSO
•
Filing: 1945-05-03
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Granted: 1947-11-25
•
Expires: 1965-05-03
Abstract
No abstract record available.
Inventors
- 👤 Caruso Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:50
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/06; B65G1/07; A; A47; A47F; A47F1/00; A47F1/04; A47F1/08; A47F1/10; G; G07; G07F; G07F11/00; G07F11/02; G07F11/04; G07F11/14
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) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |