US2720800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forging manipulator
Assignee: Wellman Smith Owen Engineering Corp Ltd
•
Filing: 1951-11-27
•
Granted: 1955-10-18
•
Expires: 1971-11-27
Abstract
No abstract record available.
Inventors
- 👤 Taylor Sidney William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:22
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21J13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857750A
Cited
US2257546A
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US2333096A
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US2345572A
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US2379388A
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US2376678A
Cited
US2495516A
Cited
US2402887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |