US2960224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grading machine
Assignee: Individual
•
Filing: 1956-06-20
•
Granted: 1960-11-15
•
Expires: 1976-06-20
Abstract
No abstract record available.
Inventors
- 👤 Walter I Cronan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:17
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/06; B07C5/065; Y; Y10; Y10S; Y10S209/00; Y10S209/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US359514A
Cited
US1090817A
Cited
US2343042A
Cited
US2378896A
Cited
FR920219A
Cited
US2786574A
Cited
US2761560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |