Patent US2943012A successfully refreshed from Google Patents.
US2943012A
Expired / Lapsed
US
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Method and apparatus for fiberizing fibrous material
Assignee: International Basic Economy Corp
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Filing: 1955-12-01
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Granted: 1960-06-28
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Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 John W Dunning
- 👤 Jr Alexander K Moses
- 👤 Robert J Terstage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A PROCESS OF FIBERIZING FIBROUS MATERIAL THE STEPS COMPRISING COMPRESSING SAID MATERIAL IN AN ENCLOSURE TO FORM A COMPACTED PLUG, MOVING SAID PLUG THROUGH AND OUT OF SAID ENCLOSURE, ADVANCING CUTTING MEANS ACROSS THE LEADING FACE OF SAID PLUG WHEREBY TO SHEAR OFF FRAGMENTS OF SAID PLUG, AND MOVING SAID FRAGMENTS THROUGH A SECOND ENCLOSURE IN SUCH MANNER AS TO CAUSE FRICTIONAL DRAG OF SOME FRAGMENTS ACROSS OTHER FRAGMENTS, WHILE MAINTAINING ALL SAID FRAGMENTS UNDER HEAVY MECHANICAL PRESSURE INCREASING TO A FIGURE IN EXCESS OF ONE THOUSANSD POUNDS PER SQUARE INCH.
Claim 2
Dependent Claim
92 words
IN A PROCESS OF FIBERIZING FIBROUS MATERIAL THE STEPS COMPRISING COMPRESSING SAID MATERIAL IN AN ENCLOSURE TO FORM A COMPACTED PLUG, MOVING SAID PLUG THROUGH AND OUT OF SAID ENCLOSURE, ADVANCING CUTTING MEANS ACROSS THE LEADING FACE OF SAID PLUG WHEREBY TO SHEAR OFF FRAGMENTS OF SAID PLUG, AND MOVING SAID FRAGMENTS THROUGH A SECOND ENCLOSURE IN SUCH MANNER AS TO CAUSE FRICTIONAL DRAG OF SOME FRAGMENTS ACROSS OTHER FRAGMENTS, WHILE MAINTAINING ALL SAID FRAGMENTS UNDER HEAVY MECHANICAL PRESSURE INCREASING TO A FIGURE IN EXCESS OF ONE THOUSANSD POUNDS PER SQUARE INCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |