US2519900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for multiple hydraulic press systems
Assignee: HPM Development Corp
•
Filing: 1948-12-10
•
Granted: 1950-08-22
•
Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 George M Geiger
- 👤 Philip J Lindner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:37
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB124793A
Cited
US1552768A
Cited
US1990052A
Cited
US2274603A
Cited
US2331026A
Cited
US2437077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |