US3443791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine vane assembly
Assignee: RTX Corp
•
Filing: 1966-11-23
•
Granted: 1969-05-13
•
Expires: 1986-11-23
Abstract
No abstract record available.
Inventors
- 👤 Edward B Sevetz
- 👤 Leston M Freeman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:03
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2932485A
Cited
US2916874A
Cited
US3300180A
Cited
US3301526A
Cited
US3295824A
Cited
US3362681A
Cited
US3351319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |