Patent US2717049A successfully refreshed from Google Patents.
US2717049A
Expired / Lapsed
US
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Devaporizing muffler
Assignee: Fluor Corp
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Filing: 1952-05-05
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Granted: 1955-09-06
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Expires: 1972-05-05
Abstract
No abstract record available.
Inventors
- 👤 John A Langford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F01; F01N; F01N1/00; F01N1/14; F01N3/00; F01N3/02; F01N3/038; F01N3/05; F01N2470/00; F01N2470/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1217615A
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US1637347A
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US1577626A
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US1709332A
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US1877296A
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US1927947A
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US2088994A
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US2511190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |