US3490644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fume arrester
Assignee: MAX E REDBURN
•
Filing: 1966-11-07
•
Granted: 1970-01-20
•
Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 Max E Redburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:02
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT61878B
Cited
US695237A
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US718475A
Cited
US1266665A
Cited
US1553395A
Cited
US1974091A
Cited
FR856407A
Cited
DE1052912B
Cited
US3171820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |