US2943377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for crimping filaments
Assignee: Elwood Research Co
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Filing: 1959-06-29
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Granted: 1960-07-05
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Freiberger Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:12
CPC Classifications
D; D02; D02G; D02G1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
APPARATUS FOR CRIMPING FILAMENTS OF THERMOPLASTIC SUBSTANCES COMPRISING FIRST AND SECOND FILAMENT SUPPORT MEMBERS SPACED FROM EACH OTHER, HEATING MEANS BETWEEN SAID SUPPORTS, FIRST AND SECOND VIBRATION PRODUCING MEANS BETWEEN SAID SUPPORTS, VIBRATION TRANSMITTING MEMBERS OPERATIVELY ASSOCIATED WITH SAID VIBRATION PRODUCING MEANS, ONE OF SAID TRANSMITTING MEMBERS POSITIONED TO VIBRATE SAID FILAMENTS TRANSVERSELY THEREOF, AND THE OTHER TRANSMITTING MEMBER POSITIONED TO VIBRATE SAID FILAMENTS LINEALLY THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |