Patent US2907830A successfully refreshed from Google Patents.
US2907830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal transmission system
Assignee: US Philips Corp
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Filing: 1954-10-06
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Granted: 1959-10-06
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Expires: 1974-10-06
Abstract
No abstract record available.
Inventors
- 👤 Boutry Georges Albert
- 👤 Blan Louis Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:39
CPC Classifications
H; H04; H04J; H04J7/00; H04J7/02; H04B; H04B14/00; H04B14/08; H04B3/00; H04B3/02; H04B3/32; H04J3/00; H04J3/02; H04J3/10; H04N; H04N11/00; H04N11/06; H04N11/12
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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |