US2900875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash and noise suppressor for high pressure gas exhausts
Assignee: Individual
•
Filing: 1950-05-11
•
Granted: 1959-08-25
•
Expires: 1970-05-11
Abstract
No abstract record available.
Inventors
- 👤 John H Fergus
- 👤 Aaron W Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:42
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/32; F41A21/34; F41A21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130609A
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US1555026A
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US1555027A
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US2367212A
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US2444910A
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FR911049A
Cited
FR997788A
Cited
US2466104A
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US2602255A
Cited
US2705846A
Cited
US2589738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |