US2898273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making disc-loaded waveguides
Assignee: Leland Stanford Junior University
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Filing: 1956-05-24
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Granted: 1959-08-04
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Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis H La Forge
- 👤 Richard B Neal
- 👤 Robert N Whitehurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
H; H01; H01P; H01P11/00; H01P11/001; H01P11/002; C; C25; C25D; C25D1/00; C25D1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD FOR MAKING DISC-LOADED WAVEGUIDES, COMPRISING THE STEPS OF POSITIONING THREADS TO EXTEND INTO DISCOID GROOVES OF A CIRCUMFERENTIALLY GROOVED CYLINDRICAL PLATING CORE, ELECTROPLATING METAL ONTO SAID PLATING CORE, SAID METAL SUBSTANTIALLY FILING SAID GROOVES AND COVERING SAID CORE TO FORM A PLURALITY OF ANNULAR DISCS OF SAID METAL TRANSVERSELY DISPOSED WITHIN AND UNITARY WITH A CYLINDER OF SAID METAL, SAID DISCS CONTAINING INTERNAL CAVITIES AND SAID THREADS EXTENDING FROM SAID CAVITIES THROUGH SAID METAL PLATED ON THE SAID CORE, DISSOLVING SAID PLATING CORE, AND REMOVING SAID THREADS.
Claim 2
Independent Claim
89 words
THE METHOD FOR MAKING DISC-LOADED WAVEGUIDES, COMPRISING THE STEPS OF POSITIONING THREADS TO EXTEND INTO DISCOID GROOVES OF A CIRCUMFERENTIALLY GROOVED CYLINDRICAL PLATING CORE, ELECTROPLATING METAL ONTO SAID PLATING CORE, SAID METAL SUBSTANTIALLY FILING SAID GROOVES AND COVERING SAID CORE TO FORM A PLURALITY OF ANNULAR DISCS OF SAID METAL TRANSVERSELY DISPOSED WITHIN AND UNITARY WITH A CYLINDER OF SAID METAL, SAID DISCS CONTAINING INTERNAL CAVITIES AND SAID THREADS EXTENDING FROM SAID CAVITIES THROUGH SAID METAL PLATED ON THE SAID CORE, DISSOLVING SAID PLATING CORE, AND REMOVING SAID THREADS.
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) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |