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US2720388A
Expired / Lapsed
US
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Nebulizing device
Assignee: GORDON ARMSTRONG Co Inc
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Filing: 1954-06-10
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Granted: 1955-10-11
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Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 John W Dorsak
- 👤 Thomas F Van Denberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:27
CPC Classifications
A; A61; A61G; A61G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815411A
Cited
US1985712A
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US1929348A
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AU1516133A
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US2274669A
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US2479166A
Cited
US2593134A
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US2624337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |