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US2721649A
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Assignee: C TODD
•
Filing: 1954-07-12
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Granted: 1955-10-25
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Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Walter P Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:25
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/10; B21D43/11; B21G; B21G3/00; B21G3/32; B23; B23Q; B23Q7/00; B23Q7/04; B23Q7/041; B23Q7/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |