Patent US4936791A successfully refreshed from Google Patents.
US3605758A
Expired / Lapsed
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Tobacco pipe with magazine
Assignee: Individual
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Filing: 1970-04-21
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Granted: 1971-09-20
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Expires: 1990-04-21
Abstract
Abstract A TOBACCO PIPE HAVING A TOBACCO MAGAZINE OPERABLE TO PROGRESSIVELY ADVANCE UNBURNED TOBACCO UPWARDLY TO A COMBUSTION ZONE LOCATED ADJACENT THE UPPER END OF THE PIPE BOWL. THE UPPER END OF THE BOWL IS NORMALLY CLOSED BY A DRAFT CONTROL ASSEMBLY WHICH CONTROLS THE DISTRIBUTION OF AIR THROUGH THE COMBUSTION ZONE TO ACHIEVE EVEN COMBUSTION AND TO PROVIDE A SELF-TAMPING ACTION TO THE ASHES AND COAL AS FRESH TOBACCO IS FED TO THE COMBUSTION ZONE.
Inventors
- 👤 Jay K Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:26
CPC Classifications
A; A24; A24F; A24F1/00; A24F2700/00; A24F2700/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |