US3216654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tureeofan engine
Assignee: —
•
Filing: —
•
Granted: 1965-11-09
•
Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; F04D13/043; F04D25/00; F04D25/02; F04D25/04; F04D25/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A TURBOFAN ENGINE COMPRISING, (A) A ROTATABLY MOUNTED HUB, (B) A TURBINE MOUNTED ON SAID HUB IN DRIVING RELATIONSHIP THEREWITH, (C) A FAN REMOVABLY COUPLED TO SAID HUB IN DRIVING RELATIONSHIP THEREWITH, (D) MEANS IN THE ENGINE DEFINING AN AIRFLOW PASSAGE, (E) THE BLADES OF SAID TURBINE AND FAN BEING RADIALLY DISPLACED FROM ONE ANOTHER, THE BLADES OF SAID FAN BEING MOUNTED WITHIN SAID AIRFLOW PASSAGE, THE BLADES
Claim 2
Dependent Claim
68 words
A TURBOFAN ENGINE COMPRISING, (A) A ROTATABLY MOUNTED HUB, (B) A TURBINE MOUNTED ON SAID HUB IN DRIVING RELATIONSHIP THEREWITH, (C) A FAN REMOVABLY COUPLED TO SAID HUB IN DRIVING RELATIONSHIP THEREWITH, (D) MEANS IN THE ENGINE DEFINING AN AIRFLOW PASSAGE, (E) THE BLADES OF SAID TURBINE AND FAN BEING RADIALLY DISPLACED FROM ONE ANOTHER, THE BLADES OF SAID FAN BEING MOUNTED WITHIN SAID AIRFLOW PASSAGE, THE BLADES
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |