US2702157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor employing radial diffusion
Assignee: Individual
•
Filing: 1949-09-28
•
Granted: 1955-02-15
•
Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:20
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/68; F04D29/681; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2210155A
Cited
US2235547A
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US2314572A
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US2219937A
Cited
US2435236A
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US2441239A
Cited
US2431398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |