US2999536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: Baso Inc
•
Filing: 1955-11-17
•
Granted: 1961-09-12
•
Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Schwallbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/105; F23N2229/00; F23N2229/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2005224A
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US1991863A
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US2164511A
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US2478386A
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US2494737A
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US2627911A
Cited
US2678814A
Cited
US2687738A
Cited
US2710181A
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US2767973A
Cited
US2919858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |