US2606573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable venturi assembly
Assignee: Individual
•
Filing: 1948-12-29
•
Granted: 1952-08-12
•
Expires: 1968-12-29
Abstract
No abstract record available.
Inventors
- 👤 William M Brobeck
- 👤 Jr John G Dorward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:00
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US963643A
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US2051307A
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US2007051A
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US2106300A
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US2061852A
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US2240119A
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US2333030A
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US2436319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |