Patent US3219793A successfully refreshed from Google Patents.
Patent US3101744A successfully refreshed from Google Patents.
US3101744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide damped against mechanical vibration by exterior viscoelastic and rigid lamination
Assignee: Lord Manufacturing Co
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Filing: 1962-02-26
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Granted: 1963-08-27
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Warnaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:41
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/12; H01P3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A WAVE GUIDE FOR CONDUCTING RADIO FREQUENCY POWER COMPRISING A HOLLOW CORRUGATED METAL TUBE, A LAYER OF VISCOELASTIC MATERIAL HAVING HIGH INTERNAL FRICTION AND LOW MODULUS OF ELASTICITY COMPARED TO THE METAL AND BONDED TO THE OUTER SURFACE OF THE TUBE, AND PLATES HAVING A HIGH
Claim 2
Dependent Claim
46 words
A WAVE GUIDE FOR CONDUCTING RADIO FREQUENCY POWER COMPRISING A HOLLOW CORRUGATED METAL TUBE, A LAYER OF VISCOELASTIC MATERIAL HAVING HIGH INTERNAL FRICTION AND LOW MODULUS OF ELASTICITY COMPARED TO THE METAL AND BONDED TO THE OUTER SURFACE OF THE TUBE, AND PLATES HAVING A HIGH
References Cited (Backward Citations)
FR877692A
Cited
US2994050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |