Patent US2976873A successfully refreshed from Google Patents.
US2976873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco sheet
Assignee: AMF Inc
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Filing: 1960-02-16
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Granted: 1961-03-28
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Expires: 1980-02-16
Abstract
No abstract record available.
Inventors
- 👤 Carmellini Andrew Eugene
- 👤 Hotelling Eric Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:05
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; A24B15/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A METHOD OF MAKING A TOBACCO SHEET COMPRISING IN COMBINATION THE STEPS OF PROVIDING A VISCOUS PASTE IN A LIQUID ORGANIC SOLVENT FROM A WATER INSOLUBLE ADHESIVE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, AMINOMETHYL PHENOLS AND HYDROXYMETHYL PHENOLS, MIXING SAID PASTE WITH FINELY DIVIDED TOBACCO TO FORM A TOBACCO SLURRY, FORMING SAID SLURRY INTO A THIN FILM AND THEREAFTER EVAPORATING SAID SOLVENT TO FORM A TOBACCO SHEET.
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) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |