US2553376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant mesh transmission
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1947-03-18
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Granted: 1951-05-15
•
Expires: 1967-03-18
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; E; E02; E02F; E02F9/00; E02F9/20; E02F9/202; F16H2003/0935; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19233; Y10T74/19377; Y10T74/19386; Y10T74/19405; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191322624A
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US1151762A
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US1589267A
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GB254415A
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DE476001C
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US1993983A
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GB462365A
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US2126486A
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US2400830A
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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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |