Patent US2481296A successfully refreshed from Google Patents.
US2481296A
Expired / Lapsed
US
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Vaporizing device
Assignee: —
•
Filing: —
•
Granted: 1949-09-06
•
Expires: 1966-09-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:55
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61L9/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US597811A
Cited
US959111A
Cited
US1156974A
Cited
US1661547A
Cited
US1732028A
Cited
US1755901A
Cited
US1818684A
Cited
US1974414A
Cited
US2247600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |