Patent US216568A successfully refreshed from Google Patents.
US2745136A
Expired / Lapsed
US
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Apparatus and method for making wool-like artificial fibres
Assignee: Individual
•
Filing: 1952-03-10
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Granted: 1956-05-15
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Expires: 1972-03-10
Abstract
No abstract record available.
Inventors
- 👤 Deboutteville Marcel Delamare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:32
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/20; D02; D02G; D02G1/00; Y; Y10; Y10S; Y10S8/00; Y10S8/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A DEVICE FOR IMPARTING TO A FRESHLY SPUN, AND AT LEAST COMPARABLE WITH THOSE EXISTING IN WOOL AND OTHER SIMILAR, NATURAL FIBRES, COMPRISING A VIBRATING MEMBER HAVING A RESONANCE FREQUENCY OF AT LEAST 100 CYCLES PER SECOND, AND TWO PARTS OF WHICH ARE ADAPTED TO VIBRATE SYNCHRONOUSLY IN OPPOSED DIRECTIONS IN A PLANE WHICH IS PARALLEL TO THE PLANE OF THE FIBERS, A GUIDING MEMBER SECURED ON EACH OF SAID TWO PARTS, SAID GUIDING MEMBERS BEING ADAPTED TO GUIDE THE ARTIFICIAL FIBRE SUBSTANTIALLY IN A PLANE, AND MEANS FOR CAUSING THE VIBRATING MEMBER TO VIBRATE PERMANENTLY AT ITS RESONANCE FREQUENCY.
References Cited (Backward Citations)
US1898085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |