US2789693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauging and sorting device
Assignee: Individual
•
Filing: 1951-04-27
•
Granted: 1957-04-23
•
Expires: 1971-04-27
Abstract
No abstract record available.
Inventors
- 👤 Harder Karl Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:10
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/08; B07C5/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH203718A
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GB538278A
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US2392856A
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US2439406A
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US2417148A
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US2499418A
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US2383339A
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US2448652A
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US2637116A
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CH259492A
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CH305751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |