US2672891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: Individual
•
Filing: 1948-02-07
•
Granted: 1954-03-23
•
Expires: 1968-02-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Fausek
- 👤 Irwing F Fausek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0672; G05D16/0663
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US116669A
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DE328844C
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DE489121C
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US1034323A
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US1297239A
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US1521765A
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US2061905A
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US2094191A
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US2208149A
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US2306768A
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US2100462A
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US2160849A
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US2156823A
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US2319659A
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US2354283A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |