US3507741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite filament with elastomeric core and closed-cell foam sheath
Assignee: EIDP Inc
•
Filing: 1966-04-26
•
Granted: 1970-04-21
•
Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 Antonio Nunes Aleixo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:44
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/322; D; D01; D01F; D01F8/00; D01F8/04; D01F8/16; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2122728A
Cited
US2539300A
Cited
US3227664A
Cited
US3115745A
Cited
US3158985A
Cited
US3382662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |