US2970709A
Expired / Lapsed
US
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Assignee: GTE Sylvania Inc
•
Filing: 1958-12-15
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Granted: 1961-02-07
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Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Gartner
- 👤 La Rue V Regelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:10
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/46; H01J19/00; H01J19/42; H01J19/46; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0006; H01J2893/0007; H01J2893/0096; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |