Patent US3049683A successfully refreshed from Google Patents.
US3049683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency attenuator
Assignee: Ohmega Laboratories
•
Filing: 1959-10-21
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Granted: 1962-08-14
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Expires: 1979-10-21
Abstract
No abstract record available.
Inventors
- 👤 Harry R Foster
- 👤 Elmo E Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:33
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2650350A
Cited
US2798207A
Cited
US2820951A
Cited
US2850701A
Cited
US2755447A
Cited
US2934723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |