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US3320548A
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Measuring bridge oscillator with improved linearity
Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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Filing: 1965-10-22
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Granted: 1967-05-16
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Waard Pieter De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:22
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/24; H03C; H03C3/00; H03C3/02; H03C3/08; H03H; H03H7/00; H03H7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2923893A
Cited
US2451858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |