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US2655918A
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Inhalation apparatus
Assignee: RIDDELL PRODUCTS Ltd
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Filing: 1951-06-18
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Granted: 1953-10-20
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Expires: 1971-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jones Jarman Maldwyn Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:29
CPC Classifications
A; A61; A61M; A61M11/00; A61M11/06; A61M2205/00; A61M2205/07; A61M2205/071; A61M2205/075
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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |