Patent US2040601A successfully refreshed from Google Patents.
US2040601A
Expired / Lapsed
US
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Chuck
Assignee: Cedar Rapids Engineering Co
•
Filing: 1935-02-01
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Granted: 1936-05-12
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Expires: 1955-02-01
Abstract
No abstract record available.
Inventors
- 👤 Allen I Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:16
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/16; B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/22; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-05-12 | 1939-11-11 | 1940-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-12 | 1943-11-11 | 1944-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-12 | 1947-11-11 | 1948-05-12 | $7700.00 | Window Closed / Lapsed |