US2928653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable angle blade for fluid flow machines
Assignee: General Electric Co
•
Filing: 1955-12-22
•
Granted: 1960-03-15
•
Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Roberson Harvey Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:18
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/12; F01D5/14; F01D5/148; F01D7/00; F01D7/02; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D29/322; F04D29/323; F04D29/34; F04D29/36; F04D29/362; F04D29/366
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |