Patent US2374111A successfully refreshed from Google Patents.
US2374111A
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Assignee: Keppel LeTourneau USA Inc
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Filing: 1944-12-01
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Granted: 1945-04-17
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Expires: 1964-12-01
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:47
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/28; B66; B66D; B66D1/00; B66D1/28; B66D1/30; B66D1/34; Y; Y10; Y10S; Y10S242/00; Y10S242/903
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) | 1948-04-16 | 1948-10-16 | 1949-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-16 | 1952-10-16 | 1953-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-16 | 1956-10-16 | 1957-04-17 | $7700.00 | Window Closed / Lapsed |