US3473298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture content and combustion product removal apparatus for exhaust gases
Assignee: Westinghouse Electric Corp
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Filing: 1967-12-26
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Granted: 1969-10-21
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Expires: 1987-12-26
Abstract
No abstract record available.
Inventors
- 👤 Paul A Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:26
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/04; B; B01; B01D; B01D47/00; B01D47/06; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3260035A
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US3260189A
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US3325973A
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US3395512A
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US3395656A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |