Patent US2471388A successfully refreshed from Google Patents.
US2471388A
Expired / Lapsed
US
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Plowshare
Assignee: ThyssenKrupp Budd Co
•
Filing: 1946-02-05
•
Granted: 1949-05-24
•
Expires: 1966-02-05
Abstract
No abstract record available.
Inventors
- 👤 Warren H Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:41
CPC Classifications
A; A01; A01B; A01B15/00; A01B15/02; A01B15/04; A01B15/06; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T409/00; Y10T409/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US169716A
Cited
US264885A
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US321187A
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US928690A
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US1088105A
Cited
US1250962A
Cited
US1447883A
Cited
US2312371A
Cited
US2323177A
Cited
US2397086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |