Patent US1544001A successfully refreshed from Google Patents.
US3054072A
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Square wave generator with constant start-stop characteristics
Assignee: RCA Corp
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Filing: 1958-05-23
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Granted: 1962-09-11
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Donat E Beaulieu
- 👤 Cimerman Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823; H03K3/2825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2662183A
Cited
US2681996A
Cited
US2782311A
Cited
US2758211A
Cited
US2697172A
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US2861258A
Cited
US2831113A
Cited
US2947915A
Cited
US2827568A
Cited
US2828450A
Cited
US2848613A
Cited
US2840727A
Cited
US2912574A
Cited
US2901669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |