Patent US2556020A successfully refreshed from Google Patents.
US2556020A
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Turbine
Assignee: Packard Motor Car Co
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Filing: 1946-03-23
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Granted: 1951-06-05
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Expires: 1966-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:15
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/16; F01D25/162; F01D25/164; F16; F16C; F16C21/00; F16C27/00; F16C27/04; F16C27/045; F16C19/00; F16C19/02; F16C19/14; F16C19/16; F16C19/163; F16C19/54; F16C19/541; F16C19/542; F16C19/543; F16C2360/00; F16C2360/23; Y; Y10; Y10S; Y10S416/00; Y10S416/50
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |