US3310058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of reconstituted tobacco foil
Assignee: Dow Chemical Co
•
Filing: 1964-04-20
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Granted: 1967-03-21
•
Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Albert B Savage
- 👤 Julius C Aldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:15
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; A24B15/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
A RECONSTITUTED TOBACCO FOIL COMPRISING FINELY DIVIDED TOBACCO AND A MINOR PROPORTION OF ALKALI-SOLUBLE METHYL CELLULOSE CHARACTERIZED BY A DEGREE OF SUBSTITUTION OF FROM ABOUT 0.2 TO 0.7 AND A VISCOSITY OF FROM ABOUT 15 TO 100 CPS. AS A 2 PERCENT SOLUTION IN DILUTE CAUSTIC AT 20*C.
References Cited (Backward Citations)
US2545070A
Cited
US3025860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |