US2679208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning device
Assignee: Interchemical Corp
•
Filing: 1951-06-27
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Granted: 1954-05-25
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Expires: 1971-06-27
Abstract
No abstract record available.
Inventors
- 👤 Maynard R Euverard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:53
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/006; B; B05; B05B; B05B12/00; B05B12/14; B05B12/1418; B05B7/00; B05B7/02; B05B7/12; B05B7/24; B05B7/26; B05B7/28; B05B7/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |