Patent US3020533A successfully refreshed from Google Patents.
US3020533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic analogue to digital converter
Assignee: RTX Corp
•
Filing: 1956-01-31
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Granted: 1962-02-06
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Carl F Schaefer
- 👤 Jack B Speller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:42
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/26; H03M1/14; H03M1/16; H03M1/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666912A
Cited
US2747797A
Cited
US2809369A
Cited
US2866184A
Cited
US2750584A
Cited
US2873440A
Cited
US2818557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |