US2556936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Niagara Machine and Tool Works
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Filing: 1948-10-30
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Granted: 1951-06-12
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Expires: 1968-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin A Munschauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:32
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/08; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2193; Y10T83/00; Y10T83/606; Y10T83/748; Y10T83/7487; Y10T83/7573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |