Patent US2506930A successfully refreshed from Google Patents.
US2506930A
Expired / Lapsed
US
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Wagon loading mechanism
Assignee: Keppel LeTourneau USA Inc
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Filing: 1946-06-11
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Granted: 1950-05-09
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Expires: 1966-06-11
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
B; B66; B66C; B66C7/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/014; B66C2700/015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451260A
Cited
US946321A
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US1025287A
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US1635338A
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US1775398A
Cited
US1967166A
Cited
US2405299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |