US2419563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic press for stepwise drawing of metal
Assignee: Hydraulic Development Corp Inc
•
Filing: 1942-12-11
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Granted: 1947-04-29
•
Expires: 1962-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:20
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/18; B21; B21D; B21D24/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911138A
Cited
US1927583A
Cited
US2232103A
Cited
US2222732A
Cited
US2283356A
Cited
US2273721A
Cited
US2324727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |