US2477477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scarifier attachment to go on end of a patrol blade
Assignee: Individual
•
Filing: 1947-09-25
•
Granted: 1949-07-26
•
Expires: 1967-09-25
Abstract
No abstract record available.
Inventors
- 👤 Clifford D Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:53
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8152; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32327; Y10T403/32361; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |