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Patent US2685883A successfully refreshed from Google Patents.
US2685883A
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Filtering smoking utensil
Assignee: Individual
•
Filing: 1949-03-17
•
Granted: 1954-08-10
•
Expires: 1969-03-17
Abstract
No abstract record available.
Inventors
- 👤 Schlumbohm Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:00
CPC Classifications
A; A24; A24F; A24F13/00; A24F13/02; A24F13/04; A24F13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702182A
Cited
US659041A
Cited
GB190317169A
Cited
US781018A
Cited
US1056359A
Cited
US1290960A
Cited
US1454487A
Cited
US1571417A
Cited
US1594606A
Cited
US1868986A
Cited
US2007753A
Cited
US1959717A
Cited
US2192569A
Cited
US2171484A
Cited
US2241368A
Cited
US2321639A
Cited
US2291079A
Cited
US2378400A
Cited
US2349115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |