Patent US2712489A successfully refreshed from Google Patents.
US2712489A
Expired / Lapsed
US
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Method of forming staple-length fibers by extrusion
Assignee: Individual
•
Filing: 1948-09-29
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Granted: 1955-07-05
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Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:37
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
METHOD FORMING OF FORMING STAPLE-LENGTH FIBERS BY EXTRUSION OF FLOWABLE MATERIALS ADAPTED TO INTERRUPT PASSAGE OF EACH OTHER THROUGH EXTRUSION ORIFICES ARRANGED IN A GROUP, AT LEAST ONE OF SAID MATERIALS BEING A FILAMENTFORMING MATERIAL IMMISCIBLE WITH ANOTHER OF SAID MATERAILS TO THE EXTENT OF MAINTAINING A BOUNDARY SURFACE THEREWITH DURING EXTRUSION, THE METHOD COMPRISING CAUSEING SUCH BOUNDARY SURFACE TO APPROACH SUCH GROUP OF ORIFICES IN RELATIVELY INCLINED RELATION THERETO SO THAT
Claim 2
Dependent Claim
72 words
METHOD FORMING OF FORMING STAPLE-LENGTH FIBERS BY EXTRUSION OF FLOWABLE MATERIALS ADAPTED TO INTERRUPT PASSAGE OF EACH OTHER THROUGH EXTRUSION ORIFICES ARRANGED IN A GROUP, AT LEAST ONE OF SAID MATERIALS BEING A FILAMENTFORMING MATERIAL IMMISCIBLE WITH ANOTHER OF SAID MATERAILS TO THE EXTENT OF MAINTAINING A BOUNDARY SURFACE THEREWITH DURING EXTRUSION, THE METHOD COMPRISING CAUSEING SUCH BOUNDARY SURFACE TO APPROACH SUCH GROUP OF ORIFICES IN RELATIVELY INCLINED RELATION THERETO SO THAT
References Cited (Backward Citations)
FR619841A
Cited
US1856071A
Cited
US2336159A
Cited
US2347525A
Cited
US2399191A
Cited
US2473499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |