US3470725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic spindle press for drawing metal
Assignee: Metal Flo Corp
•
Filing: 1966-07-18
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Granted: 1969-10-07
•
Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Charles J Brown
- 👤 Morton Z Baumgarten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:30
CPC Classifications
B; B21; B21D; B21D24/00; B21D22/00; B21D22/20; B21D22/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1720375A
Cited
US1462094A
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US1548457A
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GB223430A
Cited
US1967245A
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US2547331A
Cited
US2843070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |