US2915182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for grading grain
Assignee: SUPERIOR SEPARATOR Co
•
Filing: 1955-09-07
•
Granted: 1959-12-01
•
Expires: 1975-09-07
Abstract
No abstract record available.
Inventors
- 👤 William B Burnet
- 👤 Carl R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:50
CPC Classifications
B; B07; B07B; B07B13/00; B07B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE19684C
Cited
US316179A
Cited
US501898A
Cited
US1689972A
Cited
DE484172C
Cited
US1948606A
Cited
US2173314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |