US2891328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable shoe zipper
Assignee: Individual
•
Filing: 1958-03-03
•
Granted: 1959-06-23
•
Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Volk Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:04
CPC Classifications
A; A43; A43C; A43C11/00; A43C11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US162974A
Cited
US179891A
Cited
US633919A
Cited
US973012A
Cited
US1624143A
Cited
GB380909A
Cited
US2345057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |