US2543522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for proportioning liquids
Assignee: Individual
•
Filing: 1945-06-08
•
Granted: 1951-02-27
•
Expires: 1965-06-08
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2504; Y10T137/7287; Y10T137/7358; Y10T137/7368
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1664839A
Cited
US1944243A
Cited
US2226954A
Cited
US2262573A
Cited
US2314822A
Cited
US2320720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |