US2809658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valved coupling
Assignee: Simmonds Aerocessories Inc
•
Filing: 1953-04-16
•
Granted: 1957-10-15
•
Expires: 1973-04-16
Abstract
No abstract record available.
Inventors
- 👤 Frantz William
- 👤 Cihi John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:26
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23; F16K; F16K35/00; F16K35/06; F16L37/28; F16L37/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785; Y10T137/7837; Y10T137/7869; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US165391A
Cited
US2092116A
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US2179144A
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US2322462A
Cited
US2353161A
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US2367662A
Cited
US2386270A
Cited
US2618978A
Cited
US2661764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |