US3187191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine device having a permanent magnet rotor
Assignee: Individual
•
Filing: 1960-01-04
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Granted: 1965-06-01
•
Expires: 1980-01-04
Abstract
No abstract record available.
Inventors
- 👤 Albert J Baggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:19
CPC Classifications
G; G21; G21D; G21D1/00; G21D1/02; F; F01; F01D; F01D15/00; F01D15/10; H; H02; H02K; H02K44/00; H02K7/00; H02K7/18; H02K7/1807; H02K7/1823; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
A TURBINE DEVICE COMPRISING A HOLLOW, GENERALLY TOROIDAL TURBINE CASING DEFINING AN ANNULAR SPACE WITHIN THE CASING AND AN AXIAL OPENING AT THE CENTER OF THE CASING, A ROTARY ANNULAR IMPELLER IN SAID CASING INCLUDING A PLURALITY OF CIRCUMFERENTIALLY SPACED, AXIALLY EXTENDING ROLLERS WHICH ROLL ON AN INNER CYLINDRIC SURFACE OF THE CAS-
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |