US3611635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of obtaining leaf tobacco with low content of nicotine
Assignee: Japan Monopoly Corp
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Filing: 1970-06-03
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Granted: 1971-10-12
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Expires: 1990-06-03
Abstract
Abstract AN AQUEOUS SOLUTION OR AQUEOUS SUSPENSION OF A FILM FORMING AGENT IS SPRAY-SPREAD ON THE SURFACES OF TOBACCO LEAVES AFTER THE STOPPING OF FIELD-GROWN TOBCCO, TO FORM AN INSOLUBLE THIN FILM THEREON. AS A FILM-FORMING AGENT THERE MAY BE USED HIGHER ALCOHOLS HAVING 16 TO 22 CARBON ATOMS IN THE MOLECULE AND THEIR DERIVAITIVES; ANIMAL, VEGETABLE AND MINERAL WAXES; HIGH POLYMERS OR SUBSTANCES WHICH ARE GENERALLY AS A VEHICLE.
Inventors
- 👤 Masao Tanaka
- 👤 Tomoyoshi Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:58
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/24; A24B15/241; A24B15/243; A24B15/28; A24B15/30; A24B15/32
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |