Patent US3175252A successfully refreshed from Google Patents.
US3175252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a homogeneous mixture of different kinds of fibers
Assignee: Individual
•
Filing: 1962-05-02
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Granted: 1965-03-30
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Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Ota Keiichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:14
CPC Classifications
D; D01; D01G; D01G9/00; D01G9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE METHOD OF PRODUCING A HOMOGENEOUS MIXTURE OF DIFFERENT KINDS OF FIBERS, WHICH COMPRISES: SUCCESSIVELY CONDUCTING SELECTED AMOUNTS OF EACH RESPECTIVE KIND OF FIBER IN A GAS-SUSPENDED STATE INTO A LATERIALLY CONFINED SPACE, GENTLY AGITATING THE GAS-SUSPENDED FIBERS WITHIN SAID SPACE TO CAUSE THE SAME AS DISCRETE FIBERS TO SPREAD LATERALLY, DESCEND AND BE DISPOSITED AS SUCCESSIVELY SUPERIMPOSED, LATERALLY CONFINED LAYERS OF SAID RESPECTIVE KINDS OF FIBERS, REMOVING UPWARDLY INCREMENTAL PORTIONS EXTENDING THE FULL HEIGHT OF ONE SIDE OF SAID SUPERIMPOSED LAYERS, AND MIXING SUCH REMOVED PORTIONS TO OBTAIN A HOMOGENEOUS MIXTURE OF ALL OF SAID KINDS OF FIBERS.
Claim 2
Independent Claim
99 words
THE METHOD OF PRODUCING A HOMOGENEOUS MIXTURE OF DIFFERENT KINDS OF FIBERS, WHICH COMPRISES: SUCCESSIVELY CONDUCTING SELECTED AMOUNTS OF EACH RESPECTIVE KIND OF FIBER IN A GAS-SUSPENDED STATE INTO A LATERIALLY CONFINED SPACE, GENTLY AGITATING THE GAS-SUSPENDED FIBERS WITHIN SAID SPACE TO CAUSE THE SAME AS DISCRETE FIBERS TO SPREAD LATERALLY, DESCEND AND BE DISPOSITED AS SUCCESSIVELY SUPERIMPOSED, LATERALLY CONFINED LAYERS OF SAID RESPECTIVE KINDS OF FIBERS, REMOVING UPWARDLY INCREMENTAL PORTIONS EXTENDING THE FULL HEIGHT OF ONE SIDE OF SAID SUPERIMPOSED LAYERS, AND MIXING SUCH REMOVED PORTIONS TO OBTAIN A HOMOGENEOUS MIXTURE OF ALL OF SAID KINDS OF FIBERS.
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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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |