US2840341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine with active and reactive elements
Assignee: ESSEX COUNTY WELFARE BOARD
•
Filing: 1954-05-19
•
Granted: 1958-06-24
•
Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Theodor F Hudyma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:19
CPC Classifications
F; F01; F01D; F01D1/00; F01D1/32; F01D1/24; F01D1/28; F03; F03B; F03B3/00; F03B3/08; Y; Y02; Y02E; Y02E10/00; Y02E10/20
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |