Patent US2989000A successfully refreshed from Google Patents.
US2989000A
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US
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Pressure governor
Assignee: SANTA FE MANUFACTURING CORP
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Filing: 1959-12-01
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Granted: 1961-06-20
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Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Francis A Alcaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:15
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1415647A
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US2373143A
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US2667150A
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US2764868A
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US2771843A
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US2852031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |