US2688905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier roll cleaned vane type flow spreader for paper machines
Assignee: Beloit Iron Works Inc
•
Filing: 1949-03-17
•
Granted: 1954-09-14
•
Expires: 1969-03-17
Abstract
No abstract record available.
Inventors
- 👤 Hornbostel Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:10
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1154183A
Cited
US1771600A
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US2281293A
Cited
US2234979A
Cited
US2216817A
Cited
US2339711A
Cited
US2394509A
Cited
US2589639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |