Patent US2581353A successfully refreshed from Google Patents.
US2581353A
Expired / Lapsed
US
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Apparatus for the production and distribution of smoke, fog, or vapor clouds
Assignee: Individual
•
Filing: 1949-08-29
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Granted: 1952-01-08
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Expires: 1969-08-29
Abstract
No abstract record available.
Inventors
- 👤 Claude A Bonvillian
- 👤 Ralph C Brierly
- 👤 Letvin Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:25
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222794A
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US1514106A
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US1665267A
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US1930904A
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US2048997A
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FR799442A
Cited
FR832933A
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US2154002A
Cited
US2268464A
Cited
US2418098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |