US3517315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile telephone transmitter selector circuit
Assignee: U S Holding Co Inc
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Filing: 1967-06-21
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Granted: 1970-06-23
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Expires: 1987-06-21
Abstract
No abstract record available.
Inventors
- 👤 Marvin F Malm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:36
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0817; H04B7/082; H04W; H04W36/00; H04W36/24; H04W36/30; H04W36/302; H04W36/32; H04W36/324; H04W84/00
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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |