Patent US2685166A successfully refreshed from Google Patents.
US2685166A
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US
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Exhaust collector system
Assignee: RTX Corp
•
Filing: 1949-11-19
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Granted: 1954-08-03
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Expires: 1969-11-19
Abstract
No abstract record available.
Inventors
- 👤 Hasbrouck Augustus
- 👤 Wright A Parkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:52
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB311134A
Cited
FR723466A
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GB392852A
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US2044430A
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US2127073A
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US2247393A
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US2242604A
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US2295907A
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US2375091A
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US2388924A
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US2438312A
Cited
US2608819A
Cited
US2520501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |