US2640239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Step adjusting separable fastener
Assignee: Individual
•
Filing: 1950-11-28
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Granted: 1953-06-02
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Expires: 1970-11-28
Abstract
No abstract record available.
Inventors
- 👤 Schneider Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:23
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/02; A44B11/06; A41; A41F; A41F1/00; A41F1/008; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/43; Y10S24/47; Y10S24/48; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902; Y10T24/3904; Y10T24/3936; Y10T24/394; Y10T24/3951; Y10T24/45; Y10T24/45005; Y10T24/45037
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) | 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 |