Patent US6727739B2 successfully refreshed from Google Patents.
Patent US2717484A successfully refreshed from Google Patents.
US2717484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning device for thread working textile machines
Assignee: Sulzer AG
•
Filing: 1954-03-30
•
Granted: 1955-09-13
•
Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Hofstetter Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:50
CPC Classifications
D; D01; D01H; D01H11/00; D01H11/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2425577A
Cited
US2522250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |