US2780967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-making machines
Assignee: Beloit Iron Works Inc
•
Filing: 1953-06-03
•
Granted: 1957-02-12
•
Expires: 1973-06-03
Abstract
No abstract record available.
Inventors
- 👤 Dearden Harold Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:47
CPC Classifications
D; D21; D21F; D21F2/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US689400A
Cited
US877836A
Cited
GB190716533A
Cited
US1090974A
Cited
US1163254A
Cited
US1197856A
Cited
US1549338A
Cited
US1701226A
Cited
US1737781A
Cited
US2005929A
Cited
US2290777A
Cited
US2415350A
Cited
US2694346A
Cited
US2718825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |