US2522718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizer
Assignee: Knapp Monarch Co
•
Filing: 1947-03-13
•
Granted: 1950-09-19
•
Expires: 1967-03-13
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:48
CPC Classifications
A; A61; A61M; A61M11/00; A61M11/04; A61M11/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US888381A
Cited
US1055882A
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US1096916A
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US1261878A
Cited
US1508035A
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US2020364A
Cited
US2230898A
Cited
US2211728A
Cited
US2356934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |