Patent US2918956A successfully refreshed from Google Patents.
Patent US3385303A successfully refreshed from Google Patents.
US3385303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reconstituted tobacco product
Assignee: Philip Morris USA Inc
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Filing: 1966-06-16
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Granted: 1968-05-28
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 John D Hind
- 👤 George H Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:49
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SMOKING TOBACCO PRODUCT COMPRISING FROM 5.0 TO 90.0% BY WEIGHT OF A FIBROUS TOBACCO MATERIAL CONTAINING TOBACCO PECTINS HAVING SUBSTANTIALLY NO CALCIUM AND MAGNESIUM CROSS-LINKS; A CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM HYDROXIDE, CALCIUM CHLORIDE AND CALCIUM ACID PHOSPHATE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 2.0 TO 3.0% BY WEIGHT OF ELEMENTAL CALCIUM; A POTASSIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE, POTASSIUM SULFATE, POTASSIUM ACID PHOSPHATE AND POTASSIUM CHLORIDE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 0.19 TO 5.0% BY WEIGHT OF ELEMENTAL POTASSIUM; FROM 5.0 TO 20.0% OF MALIC ACID OR A SLAT THEREOF; FROM 0.75 TO 10.0% OF CITRIC ACID OR A SALT THEREOF; FROM 1.0 TO 6.0, OF A HUMECTANT AND FROM 5.0 TO 20.0% OF A SUGAR.
Claim 2
Dependent Claim
129 words
A SMOKING TOBACCO PRODUCT COMPRISING FROM 5.0 TO 90.0% BY WEIGHT OF A FIBROUS TOBACCO MATERIAL CONTAINING TOBACCO PECTINS HAVING SUBSTANTIALLY NO CALCIUM AND MAGNESIUM CROSS-LINKS; A CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM HYDROXIDE, CALCIUM CHLORIDE AND CALCIUM ACID PHOSPHATE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 2.0 TO 3.0% BY WEIGHT OF ELEMENTAL CALCIUM; A POTASSIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF POTASSIUM HYDROXIDE, POTASSIUM SULFATE, POTASSIUM ACID PHOSPHATE AND POTASSIUM CHLORIDE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 0.19 TO 5.0% BY WEIGHT OF ELEMENTAL POTASSIUM; FROM 5.0 TO 20.0% OF MALIC ACID OR A SLAT THEREOF; FROM 0.75 TO 10.0% OF CITRIC ACID OR A SALT THEREOF; FROM 1.0 TO 6.0, OF A HUMECTANT AND FROM 5.0 TO 20.0% OF A SUGAR.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |