Patent US2789693A successfully refreshed from Google Patents.
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 23:14
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/08; B07C5/083
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CH203718A
Cited
GB538278A
Cited
US2392856A
Cited
US2439406A
Cited
US2417148A
Cited
US2499418A
Cited
US2383339A
Cited
US2448652A
Cited
US2637116A
Cited
CH259492A
Cited
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 |