US2608901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylindrical absorptive fibrous body and the manufacture thereof
Assignee: Barnhardt Manufacturing Co
•
Filing: 1950-12-22
•
Granted: 1952-09-02
•
Expires: 1970-12-22
Abstract
No abstract record available.
Inventors
- 👤 Goldman Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:19
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2082; A61F13/2085; A61F13/2051
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1609255A
Cited
US2098995A
Cited
US2248123A
Cited
US2217826A
Cited
US2281647A
Cited
US2313058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |