Patent US3407724A successfully refreshed from Google Patents.
US3407724A
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US
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Power press acceleration control system
Assignee: Danly Machine Corp
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Filing: 1967-02-28
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Granted: 1968-10-29
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Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Francis E Heiberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:16
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/14; B30B15/146; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/05; B21D43/10; B30B15/148; H; H02; H02P; H02P29/00; H02P29/0016; H02P29/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3199443A
Cited
US3199439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |