Patent US2592401A successfully refreshed from Google Patents.
US2592401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco-smoking pipe bowl and stem cleaner
Assignee: Individual
•
Filing: 1949-01-11
•
Granted: 1952-04-08
•
Expires: 1969-01-11
Abstract
No abstract record available.
Inventors
- 👤 Fred G Enssle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:51
CPC Classifications
A; A24; A24F; A24F3/00; A24F3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US465727A
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US139828A
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US754884A
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GB190615167A
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US994913A
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US999331A
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GB200919A
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US1866446A
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US2099203A
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US2041469A
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US2417269A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |