US3507356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and sound baffle assembly for gaseous fluid systems
Assignee: Aeronca Inc
•
Filing: 1967-09-22
•
Granted: 1970-04-21
•
Expires: 1987-09-22
Abstract
No abstract record available.
Inventors
- 👤 William E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:26
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/24; F15; F15D; F15D1/00; F15D1/0015; F16; F16L; F16L55/00; F16L55/02; F16L55/027; F16L55/02736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3224842A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |