Patent US1677128A successfully refreshed from Google Patents.
US1677128A
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US
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Oscillating suction box
Assignee: Beloit Iron Works Inc
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Filing: 1927-12-05
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Granted: 1928-07-17
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Expires: 1947-12-05
Abstract
No abstract record available.
Inventors
- 👤 Aldrich Alonzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:00
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52; D21F1/18; D21F1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-07-17 | 1932-01-16 | 1932-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-17 | 1936-01-16 | 1936-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-17 | 1940-01-16 | 1940-07-17 | $7700.00 | Window Closed / Lapsed |