US2574756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for injecting a flowable substance into a stream of liquid
Assignee: Individual
•
Filing: 1949-02-04
•
Granted: 1951-11-13
•
Expires: 1969-02-04
Abstract
No abstract record available.
Inventors
- 👤 Harold A Petsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:42
CPC Classifications
G; G05; G05D; G05D11/00; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/316; F; F16; F16K; F16K15/00; F16K15/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2526; Y10T137/8593; Y10T137/8597
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1241551A
Cited
US1665725A
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US1708907A
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US2109628A
Cited
US2292003A
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US2323618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |