Patent US3547005A successfully refreshed from Google Patents.
US3547005A
Expired / Lapsed
US
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Device with rolling diaphragm seal separating gas and liquid
Assignee: US Philips Corp
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Filing: 1967-03-09
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Granted: 1970-12-15
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Expires: 1987-03-09
Abstract
No abstract record available.
Inventors
- 👤 Herman Henricus Maria Van D Aa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:03
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/053; F02G1/0535; F16; F16J; F16J3/00; F16J3/06; F25; F25B; F25B9/00; F25B9/14; F02G2243/00; F02G2243/02; F02G2243/04; F02G2243/08; F02G2253/00; F02G2253/08; F02G2253/10; F02G2253/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |