US2774995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High reduction fiber drafting
Assignee: Warner and Swasey Co
•
Filing: 1951-10-26
•
Granted: 1956-12-25
•
Expires: 1971-10-26
Abstract
No abstract record available.
Inventors
- 👤 Sandelin Olle Evald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/72; D01H1/00; D01H1/14; D01H1/20; D01H1/22; D01H5/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1448191A
Cited
US1499607A
Cited
US1454669A
Cited
US2219356A
Cited
US2239403A
Cited
GB551273A
Cited
US2498364A
Cited
US2677857A
Cited
US2618023A
Cited
US2659936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |