US2380741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for delaminating mica
Assignee: General Electric Co
•
Filing: 1943-09-10
•
Granted: 1945-07-31
•
Expires: 1963-09-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:56
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/20; B; B28; B28D; B28D1/00; B28D1/32; B28D1/322; Y; Y10; Y10T; Y10T156/00; Y10T156/19; Y10T156/1961; Y10T156/1967
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-07-30 | 1949-01-29 | 1949-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-07-30 | 1953-01-29 | 1953-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-07-30 | 1957-01-29 | 1957-07-31 | $7700.00 | Window Closed / Lapsed |