US3434654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for washing centrifugal compressor
Assignee: A-C COMPRESSOR Corp A CORP OF
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Filing: 1967-05-19
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Granted: 1969-03-25
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Feller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:53
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/70; F04D29/701; F04D29/705
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |