US3398534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial system and process utilizing turbo-compressor unit
Assignee: Combustion Engineering Inc
•
Filing: 1966-11-18
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Granted: 1968-08-27
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Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph S Hucks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:14
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/58; F04D29/582; F04D29/5826; F04D29/5833; F01; F01D; F01D15/00; F01D15/08; F01K; F01K3/00; F01K3/08; F01K3/18; F01K3/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2982864A
Cited
US3175899A
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 |