US2742930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide
Assignee: Champion Paper and Fibre Co
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Filing: 1952-01-23
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Granted: 1956-04-24
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Expires: 1972-01-23
Abstract
No abstract record available.
Inventors
- 👤 Jr William B Stoddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:26
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A SLENDER SEAMLESS TUBULAR METALLIC WAVE GUIDE HAVING METALLIC WALLS CHARACTERIZED BY A MICROSTRUCTURE CHARACTERISTIC OF METAL ELECTROLYTICALLY DEPOSITED OUTWARD FROM THE INTERIOR SURFACE OF THE TUBULAR STRUCTURE AND,
Claim 2
Dependent Claim
29 words
A SLENDER SEAMLESS TUBULAR METALLIC WAVE GUIDE HAVING METALLIC WALLS CHARACTERIZED BY A MICROSTRUCTURE CHARACTERISTIC OF METAL ELECTROLYTICALLY DEPOSITED OUTWARD FROM THE INTERIOR SURFACE OF THE TUBULAR STRUCTURE AND,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |