Patent US3091015A successfully refreshed from Google Patents.
US3091015A
Expired / Lapsed
US
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Drawing of nylon
Assignee: EIDP Inc
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Filing: 1959-03-12
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Granted: 1963-05-28
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Expires: 1979-03-12
Abstract
No abstract record available.
Inventors
- 👤 Zimmerman Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:41
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; D01; D01F; D01F6/00; D01F6/58; D01F6/60; Y; Y10; Y10S; Y10S264/00; Y10S264/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
IN THE MULTIPLE-STAGE DRAWING OF A POLYAMIDE STRAND, THE IMPROVEMENT COMPRISING PASSING THE STRAND INTO A FIRST STAGE OF DRAWING SUCH THAT THE RATIO OF DRAWN LENGTH
Claim 2
Dependent Claim
27 words
IN THE MULTIPLE-STAGE DRAWING OF A POLYAMIDE STRAND, THE IMPROVEMENT COMPRISING PASSING THE STRAND INTO A FIRST STAGE OF DRAWING SUCH THAT THE RATIO OF DRAWN LENGTH
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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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |