US2797444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of spun yarn
Assignee: Teijin Ltd
•
Filing: 1953-07-07
•
Granted: 1957-07-02
•
Expires: 1973-07-07
Abstract
No abstract record available.
Inventors
- 👤 Takagi Takeo
- 👤 Ueda Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:23
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959142A
Cited
US2077320A
Cited
US2419320A
Cited
US2640228A
Cited
US2688160A
Cited
US2635295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |