US2496586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary proportioning and mixing apparatus
Assignee: CM Kemp Manufacturing Co
•
Filing: 1944-05-10
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Granted: 1950-02-07
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Kemp William Wallace
- 👤 Hunt William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:47
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/60; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US486747A
Cited
US1169090A
Cited
GB113160A
Cited
US1457207A
Cited
US1943865A
Cited
DE552778C
Cited
US2032641A
Cited
DK55884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |