Patent US2683073A successfully refreshed from Google Patents.
US2683073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing nylon gel formation
Assignee: EIDP Inc
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Filing: 1951-08-22
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Granted: 1954-07-06
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Expires: 1971-08-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:52
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/04; D01D1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE PROCESS FOR MELT EXTRUDING SUPERPOLYAMIDES WHICH COMPRISES MELTING A SUPERPOLYAMIDE, COLLECTING UP TO 2 TO 3 HOURS SUPPLY OF MOLTEN POLYMER IN A RESERVOIR FROM WHICH AIR IS EXCULDED, STIRRING THE MOLTEN POLYMER TO PREVENT GEL FORMATION AT A SLOW RATE OF 10 TO 50 REVOLUTIONS PER MINUTE WITH A STIRRER WHICH PASSES WITHIN A CLOSE DISTANCE OF ALL SURFACES OF THE RESERVOIR WHICH CONTACT THE MOLTEN POLYMER, CONTINUOUSLY FLOWING POLYMER FROM THE RESERVOIR AND FORCING THE MOLTEN POLYMER THROUGH AN ORIFICE TO FORM A SHAPED ARTICLE.
Claim 2
Dependent Claim
88 words
THE PROCESS FOR MELT EXTRUDING SUPERPOLYAMIDES WHICH COMPRISES MELTING A SUPERPOLYAMIDE, COLLECTING UP TO 2 TO 3 HOURS SUPPLY OF MOLTEN POLYMER IN A RESERVOIR FROM WHICH AIR IS EXCULDED, STIRRING THE MOLTEN POLYMER TO PREVENT GEL FORMATION AT A SLOW RATE OF 10 TO 50 REVOLUTIONS PER MINUTE WITH A STIRRER WHICH PASSES WITHIN A CLOSE DISTANCE OF ALL SURFACES OF THE RESERVOIR WHICH CONTACT THE MOLTEN POLYMER, CONTINUOUSLY FLOWING POLYMER FROM THE RESERVOIR AND FORCING THE MOLTEN POLYMER THROUGH AN ORIFICE TO FORM A SHAPED ARTICLE.
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) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |