Patent US1883645A successfully refreshed from Google Patents.
US1883645A
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Product made from mica splittings and process of making same
Assignee: Ellis Foster Co
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Filing: 1924-11-05
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Granted: 1932-10-18
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Expires: 1944-11-05
Abstract
No abstract record available.
Inventors
- 👤 Ellis Carleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:29
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C04B20/00; C04B20/10; C04B20/1018; C04B20/1029; C04B20/1033; Y; Y10; Y10S; Y10S106/00; Y10S106/03; Y10T; Y10T428/00; Y10T428/29; Y10T428/2911; Y10T428/2982; Y10T428/2991; Y10T428/31504; Y10T428/31826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-10-18 | 1936-04-18 | 1936-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-10-18 | 1940-04-18 | 1940-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-10-18 | 1944-04-18 | 1944-10-18 | $7700.00 | Window Closed / Lapsed |