US2627356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand flow control mechanism
Assignee: NEWAYGO ENGINEERING Co
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Filing: 1951-03-14
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Granted: 1953-02-03
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Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Millard J Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:27
CPC Classifications
B; B22; B22C; B22C5/00; B65; B65G; B65G69/00; B65G69/04; B65G69/0466; B65G2814/00; B65G2814/02; B65G2814/0241; B65G2814/0288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |