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Patent US3473118A successfully refreshed from Google Patents.
US3473118A
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Particle measuring apparatus including constant temperature electrostatic precipitator and resistance measuring chambers
Assignee: Unisearch Ltd
•
Filing: 1968-01-23
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Granted: 1969-10-14
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Expires: 1988-01-23
Abstract
No abstract record available.
Inventors
- 👤 Owen James Tassicker
- 👤 Kenneth James Mclean
- 👤 Zlatko Herceg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:40
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0656; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100155A
Cited
US2252222A
Cited
US2542054A
Cited
US2712362A
Cited
US3274753A
Cited
US3369346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |