US2426561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing absorbent cellulosic material
Assignee: Pacific Mills
•
Filing: 1944-12-18
•
Granted: 1947-08-26
•
Expires: 1964-12-18
Abstract
No abstract record available.
Inventors
- 👤 David M Musser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:12
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/12; D06L1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1483738A
Cited
US1800944A
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US1914331A
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US2176799A
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DE606025C
Cited
US2101262A
Cited
US2152163A
Cited
US2264229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |