US3459216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure compensated exhalation valve
Assignee: TEXACE Corp A CORP OF TEX
•
Filing: 1967-06-01
•
Granted: 1969-08-05
•
Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 Aaron Bloom
- 👤 Orland W Wilcox
- 👤 Peter I Mate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/08; A62B18/10; F; F16; F16K; F16K2200/00; F16K2200/30; F16K2200/302; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7841; Y10T137/8593; Y10T137/87169; Y10T137/87233; Y10T137/87241; Y10T137/87917; Y10T137/88022
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |