US2857765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable mechanical device
Assignee: Westinghouse Electric Corp
•
Filing: 1954-08-11
•
Granted: 1958-10-28
•
Expires: 1974-08-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul J Kiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:51
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C19/16; F; F16; F16C; F16C25/00; F16C25/06; F16C25/08; F16C2370/00; Y; Y10; Y10T; Y10T74/00; Y10T74/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2605641A
Cited
US698286A
Cited
GB299810A
Cited
US2199024A
Cited
DE746217C
Cited
US2352469A
Cited
US2416300A
Cited
US2737815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |