Patent US2641405A successfully refreshed from Google Patents.
US2641405A
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US
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Fluid compressor unit
Assignee: Ingersoll Rand Co
•
Filing: 1948-04-14
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Granted: 1953-06-09
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Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Valley John Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:41
CPC Classifications
F; F04; F04C; F04C28/00; F04C28/24; F04C23/00; F04C29/00; F04C29/0007; F04C29/02; Y; Y10; Y10S; Y10S418/00; Y10S418/01
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |