US3087904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental dressing composition comprising a polyamide and a solvent therefor
Assignee: Individual
•
Filing: 1958-01-14
•
Granted: 1963-04-30
•
Expires: 1978-01-14
Abstract
No abstract record available.
Inventors
- 👤 Kalden Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:22
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; A; A61; A61K; A61K6/00; A61K6/60; A61K6/65; A61K6/66; A61L; A61L26/00; A61L26/0009; A61L26/0019; C08J2377/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
A COMPOSITION FOR TREATMENT OF A WOUND IN THE MOUTH OF A PERSON, SAID COMPOSITION CONSISTING OF THE SOLUTION OBTAINED BY REFLUXING FOR SEVERAL HOURS AT A TEMPERATURE ABOVE 50*C. A COMPOSITION COMPRISING ONE PART BY WEIGHT OF A SYNTHETIC LINEAR PPOLYMERIC CARBONAMIDE CONTAINING RECURRING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN SEPARATED BY AT LEAST TWO CARBON ATOMS, ONE PART BY WEIGHT OF WATER, ONE PART BY WEIGHT OF BENZOL, ONE PART BY WEIGHT OF CHLOROFORM, AND SEVEN PARTS BY WEIGHT OF AN ALCOHOLIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF ETHYL ALCOHOL, PROPYL ALCOHOL AND MIXTURES THEREOF.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |