US2648922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary scoop and grader
Assignee: Individual
•
Filing: 1947-09-26
•
Granted: 1953-08-18
•
Expires: 1967-09-26
Abstract
No abstract record available.
Inventors
- 👤 Kitchen Herman William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:14
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/6463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US901470A
Cited
US1438730A
Cited
US1476254A
Cited
US1697988A
Cited
US1861762A
Cited
US2035074A
Cited
US2301166A
Cited
US2441744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |