Patent US3379411A successfully refreshed from Google Patents.
US3379411A
Expired / Lapsed
US
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Jacks employing elongated, tubular pneumatic elements
Assignee: Scienco Inc
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Filing: 1967-03-17
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Granted: 1968-04-23
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Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 John A Vanderjagt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/35; B66F5/00; B66F5/04; F; F15; F15B; F15B15/00; F15B15/08; F15B15/10
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) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |