Patent US3584630A successfully refreshed from Google Patents.
US3584630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco product having low nicotine content associated with a release agent having nicotine weakly absorbed thereon
Assignee: Philip Morris USA Inc
•
Filing: 1969-08-20
•
Granted: 1971-06-15
•
Expires: 1989-08-20
Abstract
Abstract This disclosure relates to a tobacco product containing a nicotine-releasing agent and to a method for releasing a controlled amount of nicotine into tobacco smoke. The nicotinereleasing agent comprises a finely divided, weak absorbent of gas furnace or channel carbon black, the said carbon black having on its surface weakly adsorbed per part of weak adsorbent. The nicotine is released from the weak adsorbent during smoking to bring the nicotine content in the smoke generated by a low nicotine tobacco with which it is associated, to a total level of 0.1-3.0 mg.
Inventors
- 👤 George Esler Inskeep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:40
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/14; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/281; A24B15/282
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |