US3493169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleed for compressor
Assignee: RTX Corp
•
Filing: 1968-06-03
•
Granted: 1970-02-03
•
Expires: 1988-06-03
Abstract
No abstract record available.
Inventors
- 👤 Robert N Abild
- 👤 Charles B Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:26
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/02; F04D17/025; F02; F02C; F02C6/00; F02C6/04; F02C6/06; F02C6/08; F04D29/00; F04D29/26; F04D29/28; F04D29/284; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215; F04D29/32; F04D29/321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1151964A
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US1473802A
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FR643177A
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US2709567A
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US2682991A
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US3104092A
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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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |