US3356094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking devices
Assignee: Battelle Memorial Institute Inc
•
Filing: 1965-09-22
•
Granted: 1967-12-05
•
Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Ellis Charles Drummond
- 👤 Hughes Ivor Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:44
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/002; A24D1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN IMPROVED SMOKING DEVICE ASSEMBLY HAVING A MOUTHPIECE END AND AN IGNITION END THROUGH WHICH AIR MAY BE DRAWN COMPRISING: A CYLINDRICAL WRAPPER FORMED AROUND THE DEVICE AND EXTENDING LONGITUDINALLY THEREOF; A CENTRAL TUBE ARRANGED CONCENTRICALLY THEREIN SO AS TO PROVIDE A SPACE INSIDE THE TUBE AND AN ANNULAR SPACE BETWEEN THE WRAPPER AND TUBE, SAID TUBE BEING MADE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MATERIALS WHICH ARE DESTRUCTIVELY AFFECTED BY HEAT FROM THE BURNING TOBACCO, FRANGIBLE MATERIALS AND MATERIALS WHICH ARE RENDERED FRANGIBLE AT THE BURNING TEMPERATURE OF THE TOBACCO MATERIAL SO THAT ANY PORTION OF THE TUBE PROJECTING BEYOND THE BURNING END OF THE TOBACCO MATERIAL CAN BE READILY ELIMINATED; A SOURCE OF ADDITIVE MATERIAL RELEASABLE INTO THE AIR WHEN SUBJECTED TO AN ELEVATED TEMPERATURE DISPOSED IN ONE OF SAID SPACES; TOBACCO MATERIAL DISPOSED IN THE OTHER OF SAID SPACES SO AS TO HEAT SAID SOURCE OF ADDITIVE MATERIAL WHEN IT IS IGNITED AND MEANS CONTRTOLLING THE RELATIVE PROPORTION OF AIR PASSING THROUGH THE RESPECTIVE SPACES.
Claim 2
Dependent Claim
171 words
AN IMPROVED SMOKING DEVICE ASSEMBLY HAVING A MOUTHPIECE END AND AN IGNITION END THROUGH WHICH AIR MAY BE DRAWN COMPRISING: A CYLINDRICAL WRAPPER FORMED AROUND THE DEVICE AND EXTENDING LONGITUDINALLY THEREOF; A CENTRAL TUBE ARRANGED CONCENTRICALLY THEREIN SO AS TO PROVIDE A SPACE INSIDE THE TUBE AND AN ANNULAR SPACE BETWEEN THE WRAPPER AND TUBE, SAID TUBE BEING MADE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MATERIALS WHICH ARE DESTRUCTIVELY AFFECTED BY HEAT FROM THE BURNING TOBACCO, FRANGIBLE MATERIALS AND MATERIALS WHICH ARE RENDERED FRANGIBLE AT THE BURNING TEMPERATURE OF THE TOBACCO MATERIAL SO THAT ANY PORTION OF THE TUBE PROJECTING BEYOND THE BURNING END OF THE TOBACCO MATERIAL CAN BE READILY ELIMINATED; A SOURCE OF ADDITIVE MATERIAL RELEASABLE INTO THE AIR WHEN SUBJECTED TO AN ELEVATED TEMPERATURE DISPOSED IN ONE OF SAID SPACES; TOBACCO MATERIAL DISPOSED IN THE OTHER OF SAID SPACES SO AS TO HEAT SAID SOURCE OF ADDITIVE MATERIAL WHEN IT IS IGNITED AND MEANS CONTRTOLLING THE RELATIVE PROPORTION OF AIR PASSING THROUGH THE RESPECTIVE SPACES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |