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US2542453A
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Double-acting slider
Assignee: Crown Fastener Corp
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Filing: 1946-05-09
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Granted: 1951-02-20
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Expires: 1966-05-09
Abstract
No abstract record available.
Inventors
- 👤 Charles S Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:48
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2561; Y10T24/2582; Y10T24/2584
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |