US2514145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Felters Co
•
Filing: 1946-03-29
•
Granted: 1950-07-04
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:58
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1615; B01D46/00; B01D2239/00; B01D2239/04; B01D2239/0464; B01D2239/0471; B01D2239/0492; B01D2239/06; B01D2239/0604; B01D2239/064; B01D2239/08; B01D2239/086; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2139
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A FILER BODY OF THE CHARACTER DESCRIBED, COMPRISING FIBERS FELTED TOGETHER AND IMPREGNATED WITH RESINOUS FRANGIBLE MATERIAL, SAID RESINOUS MATERIAL BEING FRACTURED ON THE SURFAES OF THE FIBERS INTO SMALL ADHERING FRAGMENTS.
Claim 2
Dependent Claim
32 words
A FILER BODY OF THE CHARACTER DESCRIBED, COMPRISING FIBERS FELTED TOGETHER AND IMPREGNATED WITH RESINOUS FRANGIBLE MATERIAL, SAID RESINOUS MATERIAL BEING FRACTURED ON THE SURFAES OF THE FIBERS INTO SMALL ADHERING FRAGMENTS.
References Cited (Backward Citations)
US1674580A
Cited
GB292479A
Cited
US1970426A
Cited
US2178614A
Cited
US2019241A
Cited
GB433190A
Cited
US2114682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |