US2603889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe
Assignee: BLANKLETTE Corp
•
Filing: 1950-02-10
•
Granted: 1952-07-22
•
Expires: 1970-02-10
Abstract
No abstract record available.
Inventors
- 👤 Evelyn K Lahnstein
- 👤 Lahnstein Joseph Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
A; A43; A43C; A43C11/00; A43C11/02; A43B; A43B3/00; A43B3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1104357A
Cited
GB102603A
Cited
US1748607A
Cited
US1895270A
Cited
US2391720A
Cited
US2444822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |