US2442004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhaler for analgesic or anaesthetic purposes
Assignee: Individual
•
Filing: 1945-08-17
•
Granted: 1948-05-25
•
Expires: 1965-08-17
Abstract
No abstract record available.
Inventors
- 👤 Hayward-Butt John Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:15
CPC Classifications
C; C22; C22C; C22C24/00; A; A61; A61M; A61M15/00; A61M15/0028; A61M15/003; A61M15/0031; A61M15/08; C22C25/00; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US724680A
Cited
GB190506148A
Cited
US968757A
Cited
FR367491A
Cited
GB199286A
Cited
US1585912A
Cited
US2395109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |