Patent US3527544A successfully refreshed from Google Patents.
US3527544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled blade shroud
Assignee: Motors Liquidation Co
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Filing: 1968-12-12
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Granted: 1970-09-08
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Expires: 1988-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:25
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/22; F01D5/225; F01D5/14; F01D5/18; F01D5/187; F05; F05B; F05B2240/00; F05B2240/80; F05B2240/801; F05D; F05D2240/00; F05D2240/80; F05D2240/81
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) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |