US3349776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-temperature cigarette
Assignee: Bell Canada Inc
•
Filing: 1964-12-04
•
Granted: 1967-10-31
•
Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 James A E Bell
- 👤 David H Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:29
CPC Classifications
A; A24; A24D; A24D1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A CIGARETTE EXTENDING LONGITUDINALLY BETWEEN AN ORAL AND A FREE END, COMPRISING: AN OUTER EXTENT OF SAID CIGARETTE EXTENDING INWARDLY FROM SAID FREE END, BEING A COMBUSTIBLE CASING PACKED WITH CUT TOBACCO TO AN EXTENT TO HAVE A RESISTANCE TO THE FLOW OF DRY NITROGEN AT 80*F. (AT THE FLOW CREATED AT 0.3 CENTIMETER OF WATER PER CENTIMETER ALONG THE FLOW PATH) OF FROM 80 TO 2000 UNITS WHERE SUCH UNITS ARE MEASURED IN:
References Cited (Backward Citations)
US29436A
Cited
US172370A
Cited
US191501A
Cited
US1559322A
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US2349551A
Cited
US3260265A
Cited
US3118453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |