Patent US2280573A successfully refreshed from Google Patents.
US2280573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament transporting method and apparatus
Assignee: General Electric Co
•
Filing: 1938-11-16
•
Granted: 1942-04-21
•
Expires: 1958-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John Flaws
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:31
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/46; H05; H05K; H05K13/00; H05K13/003; H01J2893/00; H01J2893/0096; H01J2893/0097; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53478
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) | 1945-04-20 | 1945-10-20 | 1946-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-04-20 | 1949-10-20 | 1950-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-04-20 | 1953-10-20 | 1954-04-21 | $7700.00 | Window Closed / Lapsed |