US2979228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead wire feed
Assignee: GTE Sylvania Inc
•
Filing: 1957-05-16
•
Granted: 1961-04-11
•
Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Englert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/46; H01J2893/00; H01J2893/0096; H01J2893/0097; Y; Y10; Y10S; Y10S29/00; Y10S29/044; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |