Patent US4646891A successfully refreshed from Google Patents.
US3070100A
Expired / Lapsed
US
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Ion controlled inhaling device
Assignee: JOHN C BECKETT
•
Filing: 1957-03-25
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Granted: 1962-12-25
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Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 John C Beckett
- 👤 Wells Fargo Bank Americ Compan
- 👤 E P Kayser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:07
CPC Classifications
A; A24; A24F; A24F1/00; A24F2700/00; A24F2700/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2124130A
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US2307573A
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US2381455A
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US2594777A
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GB722933A
Cited
US2701571A
Cited
US2791224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |