US2780404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid compressor
Assignee: General Electric Co
•
Filing: 1953-07-21
•
Granted: 1957-02-05
•
Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 Hans P Kuehni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/022; F04; F04B; F04B27/00; F04B27/005; F04B49/00; F04B49/12; F04B49/16; F25B31/00; F25B2400/00; F25B2400/07; F25B2400/074; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US803149A
Cited
US2044064A
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US2131729A
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FR855890A
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US2259713A
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US2303597A
Cited
US2563939A
Cited
US2640425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |