US2730696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse time modulated system
Assignee: GTE Sylvania Inc
•
Filing: 1951-05-10
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Granted: 1956-01-10
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Expires: 1971-05-10
Abstract
No abstract record available.
Inventors
- 👤 James N Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:26
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H04B3/546; G; G08; G08C; G08C19/00; G08C19/16; G08C19/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB528806A
Cited
US2489253A
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US2554308A
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US2468703A
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US2553752A
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US2525893A
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US2648836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |