US2451723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gearing connecting oppositely rotating shafts
Assignee: Individual
•
Filing: 1944-03-04
•
Granted: 1948-10-19
•
Expires: 1964-03-04
Abstract
No abstract record available.
Inventors
- 👤 Eagle Harold Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/12; F42B19/22; B; B63; B63H; B63H23/00; B63H23/28; B63H5/00; B63H5/07; B63H5/08; B64; B64D; B64D35/00; B64D35/04; F01; F01B; F01B7/00; F01B7/02; F01B7/14; F16; F16H; F16H37/00; F02; F02B; F02B75/00; F02B75/28; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19126; Y10T74/19135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17218E
Cited
US968127A
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US1091427A
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US1837870A
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US1858911A
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US2305454A
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US2229153A
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US2311254A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |