Patent US4714468A successfully refreshed from Google Patents.
Patent US2989797A successfully refreshed from Google Patents.
US2989797A
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US
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Process for the manufacture of staple yarns by filament decomposition
Assignee: Hoechst AG
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Filing: 1956-11-26
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Granted: 1961-06-27
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Expires: 1976-11-26
Abstract
No abstract record available.
Inventors
- 👤 Nusslein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:58
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/022; Y; Y10; Y10S; Y10S8/00; Y10S8/04; Y10S8/10; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR THE MANUFACTURE OF STAPLE PRODUCTS WHICH COMPRISES LOCALLY APPLYING A SMALL STRIPE OF A DECOMPOSING AGENT COMPRISING GUANADINE CARBONATE AND THIODIGLYCOL AS ACTIVE INGREDIENTS TO ENDLESS FILAMENTS OF A POLYETHYLENE TEREPHTHALATE FIBER, AND THEN SEVERING SAID FIBER BY DECOMPOSITION.
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE MANUFACTURE OF STAPLE PRODUCTS WHICH COMPRISES LOCALLY APPLYING A SMALL STRIPE OF A DECOMPOSING AGENT COMPRISING GUANADINE CARBONATE AND THIODIGLYCOL AS ACTIVE INGREDIENTS TO ENDLESS FILAMENTS OF A POLYETHYLENE TEREPHTHALATE FIBER, AND THEN SEVERING SAID FIBER BY DECOMPOSITION.
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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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |