US2638248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous batch feeder control
Assignee: Syntron Co
•
Filing: 1947-01-03
•
Granted: 1953-05-12
•
Expires: 1967-01-03
Abstract
No abstract record available.
Inventors
- 👤 Grove D Alvord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:24
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US308001A
Cited
US925390A
Cited
US1372768A
Cited
US1610564A
Cited
US2101257A
Cited
DE661667C
Cited
US2125898A
Cited
GB487099A
Cited
US2276382A
Cited
FR856871A
Cited
US2381505A
Cited
US2340030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |