US2656579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining device for slide fasteners
Assignee: Individual
•
Filing: 1952-01-08
•
Granted: 1953-10-27
•
Expires: 1972-01-08
Abstract
No abstract record available.
Inventors
- 👤 David E Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:55
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/301; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2511; Y10T24/34; Y10T24/3427; Y10T24/3449
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US308998A
Cited
US652891A
Cited
US1374351A
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US1532671A
Cited
US1509155A
Cited
US2111924A
Cited
US2515557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |