Patent US3527242A successfully refreshed from Google Patents.
US3527242A
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Three-phase mono-diaphragm breathing valve
Assignee: TEXACE Corp A CORP OF TEX
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Filing: 1968-09-16
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Granted: 1970-09-08
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Expires: 1988-09-16
Abstract
No abstract record available.
Inventors
- 👤 William Kenneth Ansite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
A; A62; A62B; A62B9/00; A62B9/02; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/148; F16K15/144; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/2564; Y10T137/2572; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7843; Y10T137/7879; Y10T137/7888; Y10T137/789
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |