US2912155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbo-compressor rotor assemblies
Assignee: Individual
•
Filing: 1957-04-08
•
Granted: 1959-11-10
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Buchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:04
CPC Classifications
F; F02; F02B; F02B39/00; F01; F01D; F01D25/00; F01D25/16; F01D25/166; F01D5/00; F01D5/02; F01D5/04; F01D5/043; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12
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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |