US3070131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
By-pass duct for gas turbine engine
Assignee: Motors Liquidation Co
•
Filing: 1957-12-06
•
Granted: 1962-12-25
•
Expires: 1977-12-06
Abstract
No abstract record available.
Inventors
- 👤 John B Wheatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:41
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/522; F02; F02C; F02C7/00; F02C7/04; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215; F04D27/023
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |