US2622437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor balancing machine
Assignee: Unisys Corp
•
Filing: 1945-10-30
•
Granted: 1952-12-23
•
Expires: 1965-10-30
Abstract
No abstract record available.
Inventors
- 👤 Karl F Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:20
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/14; G01M1/16; G01M1/22; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2937; Y10T137/294; Y10T137/2943
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1600569A
Cited
US2306625A
Cited
US1210085A
Cited
US1263325A
Cited
US2140398A
Cited
US2243457A
Cited
US2293371A
Cited
US2289074A
Cited
US2243458A
Cited
US2383588A
Cited
US2405474A
Cited
US2382673A
Cited
US2382843A
Cited
US2405430A
Cited
US2487035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |