US2675853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of synthetic fluorine-micas
Assignee: Individual
•
Filing: 1952-06-09
•
Granted: 1954-04-20
•
Expires: 1972-06-09
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hatch
- 👤 Jay E Comeforo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:15
CPC Classifications
C; C04; C04B; C04B30/00; Y; Y10; Y10S; Y10S106/00; Y10S106/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
THE METHOD OF FORMING A LAMINATED MICA ARTICLE COMPRISING MIXING A PLURALITY OF SYNTHETIC FLUOR-MICAS HAVING DIFFERENT MELTING POINTS AND SELECTED FROM THE GROUP HAVING THE COMPOSITION
Claim 2
Independent Claim
27 words
THE METHOD OF FORMING A LAMINATED MICA ARTICLE COMPRISING MIXING A PLURALITY OF SYNTHETIC FLUOR-MICAS HAVING DIFFERENT MELTING POINTS AND SELECTED FROM THE GROUP HAVING THE COMPOSITION
References Cited (Backward Citations)
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US1812306A
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US2032239A
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US2185280A
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US2196972A
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US2516983A
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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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |