US2840298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated compressor vane
Assignee: Motors Liquidation Co
•
Filing: 1954-08-09
•
Granted: 1958-06-24
•
Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 William S Castle
- 👤 John M Wetzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:38
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D29/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2563269A
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US2514105A
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US2618120A
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GB629044A
Cited
GB660007A
Cited
US2634049A
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US2647368A
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US2625367A
Cited
GB676314A
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US2755061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |