US3027792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch clamping mechanism for power presses
Assignee: Niagara Machine and Tool Works
•
Filing: 1957-09-16
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Granted: 1962-04-03
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Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Frank J Hohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:49
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/04; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9457; Y10T83/9473
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US241617A
Cited
US1412170A
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US2224708A
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GB605008A
Cited
DE831602C
Cited
US2695788A
Cited
US2755758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |