US2807434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rotor assembly
Assignee: Motors Liquidation Co
•
Filing: 1952-04-22
•
Granted: 1957-09-24
•
Expires: 1972-04-22
Abstract
No abstract record available.
Inventors
- 👤 Donald G Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:39
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3007; F01D5/02; F01D5/06; F01D5/08; F01D5/081; F01D5/084; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2220420A
Cited
US2236426A
Cited
US2462600A
Cited
US2657901A
Cited
GB612097A
Cited
US2656147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |