US3480809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning fork resonator with reed-mode damping and reed signal cancellation
Assignee: PHILAMON Inc
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Filing: 1968-07-09
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Granted: 1969-11-25
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Expires: 1988-07-09
Abstract
No abstract record available.
Inventors
- 👤 Boris F Grib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:27
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/10; G; G04; G04C; G04C3/00; G04C3/08; G04C3/10; G04C3/101; G04C3/102; H03; H03H; H03H9/00; H03H9/46; H03H9/48
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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |