US2825519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: West Virginia Pulp and Paper Co
•
Filing: 1955-09-15
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Granted: 1958-03-04
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Expires: 1975-09-15
Abstract
No abstract record available.
Inventors
- 👤 Potts Claude Rowan
- 👤 Charles D Welshenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:53
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/10; A47F5/11; A47F5/112; A47F5/114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063393A
Cited
US2134130A
Cited
US2066844A
Cited
US2179830A
Cited
US2663104A
Cited
US2745617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |