US3398881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor bleed device
Assignee: RTX Corp
•
Filing: 1967-01-10
•
Granted: 1968-08-27
•
Expires: 1987-01-10
Abstract
No abstract record available.
Inventors
- 👤 Paul B Greenberg
- 👤 Albert H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:36
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2692724A
Cited
GB619722A
Cited
US2636665A
Cited
US2618433A
Cited
US2910268A
Cited
US2927725A
Cited
US2830751A
Cited
US3031128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |