US2934443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact resistant ceramic dielectric and method of making same
Assignee: Individual
•
Filing: 1957-10-10
•
Granted: 1960-04-26
•
Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Haskiel R Shell
- 👤 Jay E Comeforo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:28
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/16; C04B35/18; C04B35/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A METHOD OF PREPARING A CERAMIC ARTICLE OF MANUFACTURE OF IMPROVED IMPACT RESISTANCE WHICH COMPRISES ADMIXING A CRYSTALLINE FIBROUS MINERAL COMPOSITION CORRESPONDING TO THE FORMULA
Claim 2
Independent Claim
25 words
A METHOD OF PREPARING A CERAMIC ARTICLE OF MANUFACTURE OF IMPROVED IMPACT RESISTANCE WHICH COMPRISES ADMIXING A CRYSTALLINE FIBROUS MINERAL COMPOSITION CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2693668A
Cited
US2736714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |