US2887155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cutting polyamide filaments
Assignee: EIDP Inc
•
Filing: 1955-06-28
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Granted: 1959-05-19
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Expires: 1975-06-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Keefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; Y; Y10; Y10S; Y10S8/00; Y10S8/21; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
PROCESS COMPRISING EXPOSING TENCIOUS POLYAMIDE FILAMENTS TO HOT MOIST AIR CONTAINING FROM ABOUT 0.1 TO ABOUT 0.01 POUND WATER VAPOR PER POUND OF DRY AIR AT A TEMPERATURE BETWEEN ABOUT 110* C. AND ABOUT 200* C. FOR A TIME OF ABOUT AT LEAST 0.005 SECOND AND IMMEDIATELY THEREAFTER CUTTING THE FILAMENTS.
Claim 2
Dependent Claim
51 words
PROCESS COMPRISING EXPOSING TENCIOUS POLYAMIDE FILAMENTS TO HOT MOIST AIR CONTAINING FROM ABOUT 0.1 TO ABOUT 0.01 POUND WATER VAPOR PER POUND OF DRY AIR AT A TEMPERATURE BETWEEN ABOUT 110* C. AND ABOUT 200* C. FOR A TIME OF ABOUT AT LEAST 0.005 SECOND AND IMMEDIATELY THEREAFTER CUTTING THE FILAMENTS.
References Cited (Backward Citations)
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Cited
US2287099A
Cited
US2130948A
Cited
US2327460A
Cited
US2341823A
Cited
US2733122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |