US3446005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High elastic crimped filament yarn and its manufacturing method
Assignee: Mitsubishi Chemical Corp
•
Filing: 1966-08-03
•
Granted: 1969-05-27
•
Expires: 1986-08-03
Abstract
No abstract record available.
Inventors
- 👤 Kenzo Kosaka
- 👤 Masami Tsunewaki
- 👤 Nobuaki Yonekura
- 👤 Tsutomu Okaya
- 👤 Ken Mimatsu
- 👤 Tatsujiro Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:58
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; Y; Y10; Y10S; Y10S57/00; Y10S57/905
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2962857A
Cited
US2777277A
Cited
US2766505A
Cited
US2778090A
Cited
GB833491A
Cited
US3188689A
Cited
US3117362A
Cited
GB969110A
Cited
US3118011A
Cited
US3264390A
Cited
US3343364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |