US2701923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilated boot
Assignee: Individual
•
Filing: 1953-05-22
•
Granted: 1955-02-15
•
Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
- 👤 Frank J Toman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:43
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US611830A
Cited
US895950A
Cited
US911740A
Cited
US1103874A
Cited
US1134389A
Cited
US1260942A
Cited
US1236924A
Cited
US1211542A
Cited
DE640720C
Cited
US2190802A
Cited
US2397413A
Cited
US2560591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |