Patent US2786158A successfully refreshed from Google Patents.
US2786158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tognola
Assignee: —
•
Filing: —
•
Granted: 1957-03-19
•
Expires: 1974-03-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:06
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1333731A
Cited
GB345892A
Cited
US2150725A
Cited
US2171014A
Cited
FR868459A
Cited
GB536460A
Cited
US2273990A
Cited
US2471070A
Cited
US2416107A
Cited
US2527489A
Cited
US2605754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |