US2607134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calk for footwear
Assignee: CLAUDE HARMON
•
Filing: 1949-05-27
•
Granted: 1952-08-19
•
Expires: 1969-05-27
Abstract
No abstract record available.
Inventors
- 👤 Langer Adolph Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB138399A
Cited
DE436615C
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FR674959A
Cited
US1868729A
Cited
GB415882A
Cited
FR792111A
Cited
US2260138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |