US2764104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor unloading systems
Assignee: Yeomans Brothers Co
•
Filing: 1952-10-13
•
Granted: 1956-09-25
•
Expires: 1972-10-13
Abstract
No abstract record available.
Inventors
- 👤 Yeomans Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:27
CPC Classifications
F; F04; F04C; F04C28/00; F04B; F04B49/00; F04B49/02; F04B49/03; F04B49/035; F04C29/00; F04C29/02; F04D; F04D27/00; F04D27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US849482A
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US1616992A
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US1695978A
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US2083740A
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US2254593A
Cited
US2383334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |