US3439490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of bulked yarns
Assignee: Monsanto Co
•
Filing: 1964-02-07
•
Granted: 1969-04-22
•
Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Terry Wesley Tarkington
- 👤 William R Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:40
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/229; D02G; D02G1/00; D02G1/18; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2973; Y10T428/2976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3302385A
Cited
US3248771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |