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US2591818A
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Vaporizing device
Assignee: Universal Oil Products Co
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Filing: 1949-05-20
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Granted: 1952-04-08
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Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
- 👤 Lyman C Huff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:18
CPC Classifications
A; A61; A61M; A61M11/00; A61M11/04; A61M11/041; A61M11/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2152466A
Cited
US2047973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |