US3533101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency to digital conversions
Assignee: Motorola Solutions Inc
•
Filing: 1967-03-20
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Granted: 1970-10-06
•
Expires: 1987-03-20
Abstract
No abstract record available.
Inventors
- 👤 John Keith Lauchner
- 👤 Emil George Rupprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:34
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB711762A
Cited
US2941075A
Cited
US3215934A
Cited
US3160822A
Cited
US3275938A
Cited
US3319225A
Cited
US3445840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |