US2881315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-band compensated oscillator
Assignee: ARF Products Inc
•
Filing: 1954-05-13
•
Granted: 1959-04-07
•
Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Maciszewski
- 👤 Julius J Hupert
- 👤 Szubski Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:29
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/22; E04H12/2292; H; H01; H01P; H01P1/00; H01P1/22; H01P1/222; H03; H03B; H03B21/00; H03B21/01; H03B21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |