US2441828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel mounting
Assignee: Individual
•
Filing: 1944-08-07
•
Granted: 1948-05-18
•
Expires: 1964-08-07
Abstract
No abstract record available.
Inventors
- 👤 Donald K Mclennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:07
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/36; A43B21/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US887020A
Cited
US1126099A
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US1494500A
Cited
US1544587A
Cited
US1609681A
Cited
FR609346A
Cited
US1778089A
Cited
GB446215A
Cited
US2111898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |