US3455314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen therapy flow time measuring system
Assignee: LUKE D WENGER
•
Filing: 1967-09-12
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Granted: 1969-07-15
•
Expires: 1987-09-12
Abstract
No abstract record available.
Inventors
- 👤 Roy Victor Glick
- 👤 Luke D Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:57
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/08; A61B5/083; A61M; A61M16/00; A61M16/021; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/8158; Y10T137/8208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309811A
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US2678063A
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US2569432A
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US2854025A
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US2970473A
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US3156290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |