Patent US3077004A successfully refreshed from Google Patents.
US3077004A
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Filament drawing
Assignee: EIDP Inc
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Filing: 1956-03-23
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Granted: 1963-02-12
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Lester R Mummery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:31
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/221; Y; Y10; Y10S; Y10S425/00; Y10S425/053; Y10S8/00; Y10S8/04; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
PROCESS COMPRISING IMMERSING TOW COMPOSED OF FILAMENTS OF SYNTHETIC ORGANIC POLYMER IN A BATH OF LIQUID NON-SOLVENT FOR THE POLYMER, FORWARDING THE IMMERSED TOW THROUGH THE BATH MEANWHILE SPREADING IT INTO A SHEET OF ESSENTIALLY PARALLEL FILAMENTS, REMOVING THE SHEET OF
Claim 2
Dependent Claim
41 words
PROCESS COMPRISING IMMERSING TOW COMPOSED OF FILAMENTS OF SYNTHETIC ORGANIC POLYMER IN A BATH OF LIQUID NON-SOLVENT FOR THE POLYMER, FORWARDING THE IMMERSED TOW THROUGH THE BATH MEANWHILE SPREADING IT INTO A SHEET OF ESSENTIALLY PARALLEL FILAMENTS, REMOVING THE SHEET OF
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US2587619A
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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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |