US3380244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core-spun elastic yarn product and process
Assignee: EIDP Inc
•
Filing: 1966-02-01
•
Granted: 1968-04-30
•
Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Robert S Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:03
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328; Y; Y10; Y10S; Y10S57/00; Y10S57/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3038295A
Cited
US3255580A
Cited
US3146575A
Cited
US3247569A
Cited
US3234725A
Cited
US3315328A
Cited
GB1023904A
Cited
US3279163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |