US3384296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing of horizontally-split centrifugal compressors
Assignee: Individual
•
Filing: 1967-05-19
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Granted: 1968-05-21
•
Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Kahane Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:38
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/083; F04D29/10; F04D29/12; F04D29/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |