US2526246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking structure
Assignee: Individual
•
Filing: 1947-12-17
•
Granted: 1950-10-17
•
Expires: 1967-12-17
Abstract
No abstract record available.
Inventors
- 👤 Leeper Benjamin Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:58
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/10; A47B; A47B2230/00; A47B2230/0074; A47B2230/0085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US111608A
Cited
US957859A
Cited
US1372100A
Cited
US1348262A
Cited
US1717137A
Cited
US2000915A
Cited
US2240767A
Cited
US2347821A
Cited
US2319877A
Cited
US2366677A
Cited
US2435132A
Cited
US2468513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |