US3478548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draw key for unlocking fasteners having solid or hollow control plungers
Assignee: RULETA CO Inc
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Filing: 1968-02-02
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Granted: 1969-11-18
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Expires: 1988-02-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick P Finck Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/36; E05B67/365; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/439; Y10T70/443; Y10T70/70; Y10T70/7441; Y10T70/7751; Y10T70/7757; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7814
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) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |