US3427006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable orifice gas scrubber
Assignee: Automotive Rubber Co Inc
•
Filing: 1965-04-12
•
Granted: 1969-02-11
•
Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Andrew Oiestad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:30
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE506237A
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US1360445A
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US1552623A
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US2424654A
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US2472949A
Cited
DE1038357B
Cited
US3218047A
Cited
US3138647A
Cited
FR1381960A
Cited
US3350076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |