US3231836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay lines with gas lubricated bearings
Assignee: AT&T Inc
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Filing: 1963-09-04
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Granted: 1966-01-25
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Expires: 1983-09-04
Abstract
No abstract record available.
Inventors
- 👤 Eisner Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:46
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
IN COMBINATION, AN ELONGATED DELAY LINE FOR THE TRANSMISSION OF ULTRASONIC WAVE ENERGY, AND A PLURALITY OF GAS LUBRICATED BEARING SUPPORTING THE DELAY LINE AND SPACED AT UNEQUAL INTERVALS ALONG THE DELAY LINE.
Claim 2
Dependent Claim
33 words
IN COMBINATION, AN ELONGATED DELAY LINE FOR THE TRANSMISSION OF ULTRASONIC WAVE ENERGY, AND A PLURALITY OF GAS LUBRICATED BEARING SUPPORTING THE DELAY LINE AND SPACED AT UNEQUAL INTERVALS ALONG THE DELAY LINE.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |