US3457597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller drafting system for spinning machinery
Assignee: Toyota Industries Corp
•
Filing: 1967-09-15
•
Granted: 1969-07-29
•
Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Takuzo Tooka
- 👤 Hidejiro Araki
- 👤 Manji Nagai
- 👤 Choji Nozaki
- 👤 Junzo Hasegawa
- 👤 Susumu Kawabata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:37
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH79594A
Cited
GB127702A
Cited
US1579414A
Cited
US1583893A
Cited
US2076609A
Cited
GB642419A
Cited
US2624919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |