US3389745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic bearing and axial adjusting means for the simultaneous rotary and axial movement of the rotor in a rotary regenerative air preheater
Assignee: Alstom Power Inc
•
Filing: 1966-08-23
•
Granted: 1968-06-25
•
Expires: 1986-08-23
Abstract
No abstract record available.
Inventors
- 👤 Ira H Wahlbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:51
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0681; F16C32/0692; F16C31/00; F16C31/02; F28; F28D; F28D19/00; F28D19/04; F28D19/048; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3114413A
Cited
US3144903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |