US2940310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering emulsion treaters
Assignee: Cameron Solutions Inc
•
Filing: 1956-12-14
•
Granted: 1960-06-14
•
Expires: 1976-12-14
Abstract
No abstract record available.
Inventors
- 👤 Knox B Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2022695A
Cited
US2181684A
Cited
US2225949A
Cited
US2158381A
Cited
US2420115A
Cited
US2773556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |