US2951906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay device
Assignee: TDK Micronas GmbH
•
Filing: 1957-02-11
•
Granted: 1960-09-06
•
Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas G Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/78; H04; H04B; H04B14/00; H04B14/02; H04B14/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189898A
Cited
US2219021A
Cited
US2516886A
Cited
US2619636A
Cited
US2629771A
Cited
US2795650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |