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US2993491A
Expired / Lapsed
US
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Valve for cylinder actuated ash tray
Assignee: Individual
•
Filing: 1956-09-24
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Granted: 1961-07-25
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Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Harold R Bohnsack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:14
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/08; B60N3/083; B60N3/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108182A
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US2185763A
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US2382354A
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US2447364A
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US2650455A
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US2656039A
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US2718237A
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US2769447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |