US3052296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uniflow fourdrinier
Assignee: Beloit Iron Works Inc
•
Filing: 1958-11-04
•
Granted: 1962-09-04
•
Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Justus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:21
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1695873A
Cited
DE501257C
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US1926319A
Cited
US2073654A
Cited
DE577195C
Cited
US2369653A
Cited
US2488700A
Cited
US2666369A
Cited
US2893486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |