US2614488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic press
Assignee: HPM Development Corp
•
Filing: 1947-04-07
•
Granted: 1952-10-21
•
Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Howard M Purcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:08
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; E; E02; E02D; E02D3/00; E02D3/02; E02D3/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US841150A
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US1624160A
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US1706088A
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US1803845A
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US1845232A
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US2044857A
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US2169036A
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US2250551A
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US2278786A
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US2357632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |