US2431639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking reconditioning blade for plowshares
Assignee: SILVER STREAK Manufacturing Co
•
Filing: 1945-03-23
•
Granted: 1947-11-25
•
Expires: 1965-03-23
Abstract
No abstract record available.
Inventors
- 👤 Victor B Goedken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:54
CPC Classifications
A; A01; A01B; A01B15/00; A01B15/02; A01B15/04; A01B15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US216773A
Cited
GB189918571A
Cited
US1067268A
Cited
US1707426A
Cited
US1976268A
Cited
US2050488A
Cited
US2286424A
Cited
US2254011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |