US2435669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical mucker
Assignee: ARTHUR O HALL
•
Filing: 1944-08-14
•
Granted: 1948-02-10
•
Expires: 1964-08-14
Abstract
No abstract record available.
Inventors
- 👤 Milan N Boskovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:46
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/06; E21F13/063; E21F13/065; Y; Y10; Y10S; Y10S414/00; Y10S414/129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |