US3015080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal transmission line
Assignee: Research Corp
•
Filing: 1957-06-21
•
Granted: 1961-12-26
•
Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr William F Santelmann
- 👤 Allan J Hingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:12
CPC Classifications
H; H03; H03H; H03H2/00; H03H2/005; H03H2/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507191A
Cited
US2659052A
Cited
US2680230A
Cited
US2790954A
Cited
US2883619A
Cited
US2881400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |