Patent US5276884A successfully refreshed from Google Patents.
Patent US2372072A successfully refreshed from Google Patents.
US2372072A
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Filament storage apparatus
Assignee: General Electric Co
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Filing: 1942-03-12
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Granted: 1945-03-20
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Expires: 1962-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jr John Flaws
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:37
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
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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) | 1948-03-19 | 1948-09-18 | 1949-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-19 | 1952-09-18 | 1953-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-19 | 1956-09-18 | 1957-03-20 | $7700.00 | Window Closed / Lapsed |