US3720660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic smoking material
Assignee: Gallaher Ltd
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Filing: 1971-08-30
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Granted: 1973-03-13
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Expires: 1991-08-30
Abstract
Abstract THE INVENTION IS CONCERNED WITH A METHOD OF PRODUCING AN OXIDIZED POLYSACCHARIDE FOR USE IN A SYNTHETIC SMOKING MATERIAL, WHEREIN THE POLYSACCHARIDE IS TREATED IN AN OXIDIZING SYSTEM CONTAINING AT LEAST STOICHIOMETRIC QUANTITIES OF NOTROSONIUM ION FOR URONIC OZIDATION
Inventors
- 👤 J Arendt
- 👤 J Sachetto
- 👤 J Carriere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:10
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/16; A24B15/165; C; C08; C08B; C08B15/00; C08B15/02; C08B15/04; C08B31/00; C08B31/18; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0021
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |