US3452397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic actuator for an injection molding machine
Assignee: Rockford Machine Tool Co
•
Filing: 1965-10-07
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Granted: 1969-07-01
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Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Russell A Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:05
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/64; B29C45/67; B29C45/6764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA665494A
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US2191882A
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US2498264A
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US2622288A
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US2664859A
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US2780836A
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FR1016636A
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US2880461A
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US3084512A
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US3068841A
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US3245122A
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US3183556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |