US2427446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid extracting piston press
Assignee: Individual
•
Filing: 1945-03-31
•
Granted: 1947-09-16
•
Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Joaquin J De La Roza Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:10
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US189658A
Cited
US502558A
Cited
US1082634A
Cited
US1383321A
Cited
US1991245A
Cited
US2148497A
Cited
US2398135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |