US2107784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope shield and method of depositing metal areas
Assignee: Farnsworth Television Inc
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Filing: 1937-05-21
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Granted: 1938-02-08
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Expires: 1957-05-21
Abstract
No abstract record available.
Inventors
- 👤 Bernard C Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:50
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/88; C; C03; C03C; C03C17/00; C03C17/06; C03C17/09; C23; C23C; C23C14/00; C23C14/04; C23C14/042; C23C14/046; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/263; C03C2218/00; C03C2218/10; C03C2218/15; H01J2229/00; H01J2229/88; H01J2229/882
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) | 1941-02-07 | 1941-08-09 | 1942-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-07 | 1945-08-09 | 1946-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-07 | 1949-08-09 | 1950-02-08 | $7700.00 | Window Closed / Lapsed |