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US2508147A
Expired / Lapsed
US
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Double-acting slide fastener
Assignee: Individual
•
Filing: 1945-10-08
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Granted: 1950-05-16
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Expires: 1965-10-08
Abstract
No abstract record available.
Inventors
- 👤 Dutch Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:54
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44C; A44C5/00; A44C5/14; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2166; Y10T24/25; Y10T24/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |