US2875797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic molding press
Assignee: Changewood Corp
•
Filing: 1954-06-02
•
Granted: 1959-03-03
•
Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 James D A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:25
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/32; B30B7/00; B30B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1332457A
Cited
US1436177A
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US1529721A
Cited
US1845232A
Cited
US2338329A
Cited
US2369797A
Cited
US2550882A
Cited
DE816179C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |