Patent US2438291A successfully refreshed from Google Patents.
US2438291A
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Angle drive construction
Assignee: Individual
•
Filing: 1943-04-13
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Granted: 1948-03-23
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Expires: 1963-04-13
Abstract
No abstract record available.
Inventors
- 👤 Charles A Koza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; B23B; B23B45/00; F; F16; F16C; F16C17/00; F16C17/04; F16C17/08; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19688
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB105599A
Cited
US543083A
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US1875529A
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US667465A
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US1244207A
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US1278531A
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US1390480A
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FR799430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |