US2984072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic jack assembly with synchronizing and flow equalizing valve mechanism
Assignee: HYDRAULIC ENGINEERING Inc
•
Filing: 1959-01-12
•
Granted: 1961-05-16
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Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Born
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:36
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/46; F; F15; F15B; F15B11/00; F15B11/16; F15B11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2759330A
Cited
US2782603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |