US2468249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding device
Assignee: West Virginia Pulp and Paper Co
•
Filing: 1945-05-19
•
Granted: 1949-04-26
•
Expires: 1965-05-19
Abstract
No abstract record available.
Inventors
- 👤 George R Wadleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:48
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189809953A
Cited
FR362855A
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US835312A
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US954942A
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US1097896A
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US1263691A
Cited
US1349056A
Cited
US1640070A
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US2055927A
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US2068257A
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US2375453A
Cited
US2376736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |