US3403891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full arc/partial arc admission using control valves
Assignee: General Electric Co
•
Filing: 1967-01-12
•
Granted: 1968-10-01
•
Expires: 1987-01-12
Abstract
No abstract record available.
Inventors
- 👤 Lloyd H Johnson
- 👤 Robert L Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:50
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3097490A
Cited
US3226932A
Cited
US3026889A
Cited
US3097488A
Cited
US3097489A
Cited
US3241322A
Cited
US3288160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |