US3490748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragmentation brake for turbines
Assignee: Motors Liquidation Co
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Filing: 1968-05-14
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Granted: 1970-01-20
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Expires: 1988-05-14
Abstract
No abstract record available.
Inventors
- 👤 Melvin G Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:40
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/04; F01D21/045; F01D21/006; F05; F05B; F05B2260/00; F05B2260/30; F05B2260/301; F05B2260/3011; F05D; F05D2270/00; F05D2270/01; F05D2270/02; F05D2270/021
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |