US2493693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mica product and method of making the same
Assignee: CONTINENTAL DIAMOND FIBRE CO
•
Filing: 1946-04-04
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Granted: 1950-01-03
•
Expires: 1966-04-04
Abstract
No abstract record available.
Inventors
- 👤 Parkinson Alfred Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:10
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A BUILT-UP MICA PRODUCT COMPRISING MICA SPLITTINGS BOUND TOGETHER BY THE WATER-INSOLUBLE PRODUCT OF THE FUSION OF A WATER-SOLUBLE REACTION PRODUCT OF A WATER-SOLUBLE ALKALI METAL SILICATE AND A WATER-SOLUBLE ALKALI METAL ALUMINATE, THE ALKALI METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM.
Claim 2
Dependent Claim
46 words
A BUILT-UP MICA PRODUCT COMPRISING MICA SPLITTINGS BOUND TOGETHER BY THE WATER-INSOLUBLE PRODUCT OF THE FUSION OF A WATER-SOLUBLE REACTION PRODUCT OF A WATER-SOLUBLE ALKALI METAL SILICATE AND A WATER-SOLUBLE ALKALI METAL ALUMINATE, THE ALKALI METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM.
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) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |