US2942683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas intake silencer
Assignee: Phillips Petroleum Co
•
Filing: 1953-06-01
•
Granted: 1960-06-28
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Golden A Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:52
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/661; F04D29/663; F04D29/664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1096482A
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GB209024A
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US1578682A
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US1607003A
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GB330938A
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US1844105A
Cited
US1866431A
Cited
US2065343A
Cited
GB376528A
Cited
US2050581A
Cited
FR756677A
Cited
US2143350A
Cited
GB527370A
Cited
US2398322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |