Patent US3456536A successfully refreshed from Google Patents.
US3456536A
Expired / Lapsed
US
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Workpiece clamp assembly
Assignee: Houdaille Industries Inc
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Filing: 1967-02-28
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Granted: 1969-07-22
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Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Dennis Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:08
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/10; B21J; B21J13/00; B21J13/08; B21J13/10; B25; B25B; B25B5/00; B25B5/06; B25B5/061; B25B5/065; B25B5/08; B25B5/087; Y; Y10; Y10T; Y10T83/00; Y10T83/081; Y10T83/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2986254A
Cited
US3392613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |