Patent US2640255A successfully refreshed from Google Patents.
US2640255A
Expired / Lapsed
US
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Separating end fitting for slide fasteners
Assignee: North and Judd Manufacturing Co
•
Filing: 1946-08-15
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Granted: 1953-06-02
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Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/38; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2593; Y10T29/00; Y10T29/49; Y10T29/49782
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |