US2777935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric vaporizer
Assignee: DeVilbiss Co
•
Filing: 1955-12-19
•
Granted: 1957-01-15
•
Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Joy B Schmitt
- 👤 William H Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
A; A61; A61M; A61M11/00; A61M11/04; A61M11/041; A61M11/042; A61M11/044; F; F24; F24H; F24H1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806729A
Cited
US2606276A
Cited
US1922958A
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US2347825A
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US2533794A
Cited
US2624924A
Cited
US2713628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |