US3407644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for generating standard pressure
Assignee: Kobe Steel Ltd
•
Filing: 1966-06-03
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Granted: 1968-10-29
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Expires: 1986-06-03
Abstract
No abstract record available.
Inventors
- 👤 Yasunami Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
G; G01; G01G; G01G5/00; G01G7/00; G01G7/02; G01L; G01L27/00; G01L27/002; G01L27/005; G05; G05D; G05D16/00; G05D16/14; G05D16/18; G05D16/187; F; F15; F15B; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/25; F15B2211/50; F15B2211/555; F15B2211/565; F15B2211/60; F15B2211/61; F15B2211/613; F15B2211/70; F15B2211/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2796229A
Cited
US3239827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |