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US2439262A
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Power-operated mechanism
Assignee: Individual
•
Filing: 1944-10-26
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Granted: 1948-04-06
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Expires: 1964-10-26
Abstract
No abstract record available.
Inventors
- 👤 John R Nalbach
- 👤 William F Gresham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:55
CPC Classifications
A; A61; A61H; A61H23/00; A61H23/02; A61H23/0254; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/3409; A61C17/3436; A61H13/00; F; F16; F16H; F16H21/00; F16H21/46; F16H21/52; A61H2201/00; A61H2201/01; A61H2201/0119; A61H2201/0153; A61H2201/16; A61H2201/1657; A61H2201/1676; A61H2201/1678
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US135697A
Cited
US396832A
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US470514A
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US1112747A
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US1286015A
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US1454511A
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US2107090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |