US2823593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction roll for paper-making machines
Assignee: Beloit Iron Works Inc
•
Filing: 1955-02-03
•
Granted: 1958-02-18
•
Expires: 1975-02-03
Abstract
No abstract record available.
Inventors
- 👤 Holden Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:56
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1120432A
Cited
US1581656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |