US2586014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector for paper machines
Assignee: Individual
•
Filing: 1947-06-18
•
Granted: 1952-02-19
•
Expires: 1967-06-18
Abstract
No abstract record available.
Inventors
- 👤 Clifford G Dunphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:25
CPC Classifications
D; D21; D21G; D21G3/00; D21G3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1553274A
Cited
US1600415A
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US1550993A
Cited
US1630972A
Cited
US1791284A
Cited
GB301348A
Cited
US1794058A
Cited
US1942453A
Cited
GB408352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |