Patent US2616522A successfully refreshed from Google Patents.
US2616522A
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Lubricating means for reciprocatory member in a high-pressure chamber and blowoff means therefor
Assignee: Philips Laboratories Inc
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Filing: 1948-04-27
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Granted: 1952-11-04
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Expires: 1968-04-27
Abstract
No abstract record available.
Inventors
- 👤 Willem Van Heeckeren
- 👤 George W Meadows
- 👤 Burton A Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:16
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/053; F02G1/0535; F02G2253/00; F02G2253/02; F02G2253/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490526A
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US648153A
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US754121A
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US945233A
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US1006431A
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FR535309A
Cited
US1846282A
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US2467510A
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US2547957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |