US2667299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor inlet valve actuating mechanism
Assignee: Schramm Inc
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Filing: 1950-04-14
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Granted: 1954-01-26
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Expires: 1970-04-14
Abstract
No abstract record available.
Inventors
- 👤 Alfred N Gustafson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:07
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; F01; F01L; F01L13/00; F04B39/08; F04B39/1013; F01L2760/00; F01L2760/003; F01L2760/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |