US2951905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instantaneous type time compressors and expanders for pulse time modulation transmission systems
Assignee: TDK Micronas GmbH
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Filing: 1957-01-03
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Granted: 1960-09-06
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Expires: 1977-01-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Plouffe
- 👤 Robert E Hufnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02; H04B14/026
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) | 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 |