US3066535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring low pressures
Assignee: US Philips Corp
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Filing: 1957-05-28
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Granted: 1962-12-04
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Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Opstelten Johannes Jacobus
- 👤 Johannes Jacobus Zaalber Zelst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:02
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/12; H; H04; H04R; H04R19/00; H04R19/04
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |