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US2440633A
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Assignee: Individual
•
Filing: 1946-06-18
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Granted: 1948-04-27
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Expires: 1966-06-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:52
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US173866A
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US218656A
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US23655A
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US1330514A
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US15940A
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US599327A
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US542282A
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US1223191A
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US1562306A
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US2086299A
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US2421657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |