US3503393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient controlled respiratory apparatus
Assignee: Blease Anaesthetic Equipment Ltd
•
Filing: 1966-05-19
•
Granted: 1970-03-31
•
Expires: 1986-05-19
Abstract
No abstract record available.
Inventors
- 👤 Roger E W Manley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:37
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1126073B
Cited
US3057346A
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US3068857A
Cited
USRE25871E
Cited
US3101708A
Cited
US3167070A
Cited
GB971953A
Cited
US3362404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |