US3423070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means for turbomachinery
Assignee: General Electric Co
•
Filing: 1966-11-23
•
Granted: 1969-01-21
•
Expires: 1986-11-23
Abstract
No abstract record available.
Inventors
- 👤 Charles E Corrigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:09
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/08; F01D11/12; F01D11/127; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB450524A
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US3339933A
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US3365172A
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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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |