US2736080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
walker etal
Assignee: —
•
Filing: —
•
Granted: 1956-02-28
•
Expires: 1973-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:28
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/085; H01B3/18; H01B3/185; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF MANUFACTURING A THIN, STRONGLY COHERENT ELECTRICALLY INSULATING SHEET FROM A CERAMIC POWDER WHICH COMPRISES PREPARING A SUSPENSION OF CELLULOSE FIBERS AND SAID POWDER IS AN AQUEOUS LIQUID BY A BEATING PROCESS, TAKING UP A LAYER OF SAID SUSPENSION OF NOT MORE THAN ABOUT 10 MILS THICKNESS ON A PERVIOUS SUPPORT, THE RELATIVE PROPORTIONS OF CELLULOSE AND CERAMIC POWDER IN SAID SUSPENSION BEING SUCH THAT AT LEAST 95% BY WEIGHT OF THE SOLID CONTENT OF SAID LAYER CONSISTS OF SAID POWDER
Claim 2
Independent Claim
83 words
A METHOD OF MANUFACTURING A THIN, STRONGLY COHERENT ELECTRICALLY INSULATING SHEET FROM A CERAMIC POWDER WHICH COMPRISES PREPARING A SUSPENSION OF CELLULOSE FIBERS AND SAID POWDER IS AN AQUEOUS LIQUID BY A BEATING PROCESS, TAKING UP A LAYER OF SAID SUSPENSION OF NOT MORE THAN ABOUT 10 MILS THICKNESS ON A PERVIOUS SUPPORT, THE RELATIVE PROPORTIONS OF CELLULOSE AND CERAMIC POWDER IN SAID SUSPENSION BEING SUCH THAT AT LEAST 95% BY WEIGHT OF THE SOLID CONTENT OF SAID LAYER CONSISTS OF SAID POWDER
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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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |