Patent US3303440A successfully refreshed from Google Patents.
US3303440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency joints
Assignee: Parker Hannifin Corp
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Filing: 1964-03-30
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Granted: 1967-02-07
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 George F Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:52
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/04; H01P1/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A RADIO FREQUENCY GASKET OF ELECTRICALLY CONDUCTIVE MATERIAL FOR INSERTION BETWEEN A PAIR OF APERTURED METALLIC MEMBERS, SAID GASKET HAVING OPPOSED FACES AND HAVING AN OPENING THERETHROUGH FOR ALIGNMENT WITH THE APERTURES, EACH OF SAID FACES HAVING A SERIES OF UNIFORMLY SPACED ELONGATED SHARP RIDGE MEANS SURROUNDING SAID OPENING, SAID RIDGE MEANS EXTENDING TO THE EDGE OF SAID OPENING AND BEING ADAPTED TO BE EMBEDDED IN SAID MEMBERS UP TO THE EDGES OF THE APERTURES THEREIN FOR ESTABLISHING ELECTRICAL CONTACT THEREWITH IN SUBSTANTIALLY UNIFORM MANNER AROUND THE OPENING AND IMMEDIATELY ADJACENT THERETO, SAID RIDGE MEANS EXTENDING ACROSS ONLY A PORTION OF THE FACES OF SAID GASKET WHICH PORTION IS ONLY SLIGHTLY GREATER THAN THE DEPTH OF MAJOR CURRENT FLOW ALONG THE INNER SURFACE OF SUCH APERTURED METALLIC MEMBERS.
Claim 2
Dependent Claim
128 words
A RADIO FREQUENCY GASKET OF ELECTRICALLY CONDUCTIVE MATERIAL FOR INSERTION BETWEEN A PAIR OF APERTURED METALLIC MEMBERS, SAID GASKET HAVING OPPOSED FACES AND HAVING AN OPENING THERETHROUGH FOR ALIGNMENT WITH THE APERTURES, EACH OF SAID FACES HAVING A SERIES OF UNIFORMLY SPACED ELONGATED SHARP RIDGE MEANS SURROUNDING SAID OPENING, SAID RIDGE MEANS EXTENDING TO THE EDGE OF SAID OPENING AND BEING ADAPTED TO BE EMBEDDED IN SAID MEMBERS UP TO THE EDGES OF THE APERTURES THEREIN FOR ESTABLISHING ELECTRICAL CONTACT THEREWITH IN SUBSTANTIALLY UNIFORM MANNER AROUND THE OPENING AND IMMEDIATELY ADJACENT THERETO, SAID RIDGE MEANS EXTENDING ACROSS ONLY A PORTION OF THE FACES OF SAID GASKET WHICH PORTION IS ONLY SLIGHTLY GREATER THAN THE DEPTH OF MAJOR CURRENT FLOW ALONG THE INNER SURFACE OF SUCH APERTURED METALLIC MEMBERS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |