US2672701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digging adjustment for ditching plow and conveyer combination
Assignee: Individual
•
Filing: 1947-07-16
•
Granted: 1954-03-23
•
Expires: 1967-07-16
Abstract
No abstract record available.
Inventors
- 👤 Blocker Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:43
CPC Classifications
E; E02; E02F; E02F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US198983A
Cited
US312049A
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US871011A
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US1182779A
Cited
US1229116A
Cited
DE377954C
Cited
US1988254A
Cited
US2295850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |