Patent US3433419A successfully refreshed from Google Patents.
US3433419A
Expired / Lapsed
US
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Aerosol valve having swirl chamber
Assignee: PITTSBURGH RAILWAYS CO
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Filing: 1965-09-13
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Granted: 1969-03-18
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Roger A Evesque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:17
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2806739A
Cited
US2887273A
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USRE24981E
Cited
US3075708A
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US3195787A
Cited
US3292827A
Cited
US3226040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |