US2541503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doffing mechanism for spinning machines
Assignee: EDWIN H FITLER Co
•
Filing: 1949-01-18
•
Granted: 1951-02-13
•
Expires: 1969-01-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Crossman
- 👤 Numerof Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:54
CPC Classifications
D; D01; D01H; D01H9/00; D01H9/02; D01H9/04; D01H9/046
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |