US2658832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cement
Assignee: Individual
•
Filing: 1950-07-25
•
Granted: 1953-11-10
•
Expires: 1970-07-25
Abstract
No abstract record available.
Inventors
- 👤 Ment Jack De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/70; A61K6/71; A61K6/74; A61K6/75; A61K6/78; A61K6/80; A61K6/849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
AS A NEW COMPOSITION FOR DENTAL PROSTHESIS A COLD-SETTING CEMENT WHICH CONSISTS OF THE IMPLASTIC REACTION PRODUCT FORMED IN THE BLENDING OF APPROXIMATELY TWO TO FOUR PARTS OF ZINC HYDROXYAPATITE HAVING THE FORMULA
Claim 2
Dependent Claim
33 words
AS A NEW COMPOSITION FOR DENTAL PROSTHESIS A COLD-SETTING CEMENT WHICH CONSISTS OF THE IMPLASTIC REACTION PRODUCT FORMED IN THE BLENDING OF APPROXIMATELY TWO TO FOUR PARTS OF ZINC HYDROXYAPATITE HAVING THE FORMULA
References Cited (Backward Citations)
GB190415181A
Cited
US2549180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |