US2692471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing for double-twist spindles
Assignee: Individual
•
Filing: 1950-08-11
•
Granted: 1954-10-26
•
Expires: 1970-08-11
Abstract
No abstract record available.
Inventors
- 👤 Landolt Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:03
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/10; D01H1/105; D01H1/106
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US149089A
Cited
US914794A
Cited
US1793190A
Cited
US2146578A
Cited
US2125823A
Cited
US2208742A
Cited
US2245564A
Cited
US2374085A
Cited
US2379806A
Cited
US2411126A
Cited
US2473521A
Cited
US2559735A
Cited
US2565389A
Cited
US2823638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |