US3087982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum tube mounts
Assignee: Northrop Grumman Corp
•
Filing: 1959-12-01
•
Granted: 1963-04-30
•
Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Hayes Eddie James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:05
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
A TUBE MOUNT STRUCTURE COMPRISING A RELATIVELY LARGE SOLID BLOCK OF METAL, A BORE IN SAID BLOCK, AN INDEPENDENT SLEEVE OF CURED SILICON RUBBER IN SAID BORE, AND AN ELECTRONIC TUBE SLIDABLY INSTALLED IN SAID SLEEVE, THE INNER DIAMETRIC OF SAID SLEEVE BEING NORMALLY SLIGHTLY LESS THAN THE DIAMETER OF SAID TUBER.
References Cited (Backward Citations)
US2899483A
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US2578809A
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US2529279A
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GB659728A
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US2611064A
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US2737579A
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US2799793A
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US2904617A
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US2963676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |