US3218407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit control device
Assignee: Sigma Instruments Inc
•
Filing: 1963-05-16
•
Granted: 1965-11-16
•
Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Bertil S Bengtsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:00
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/281
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A REED RELAY COMPRISING A TUBE, REED CONTACTS SEALED THEREIN, A COIL SURROUNDING SAID TUBE AND SLIDABLE LENGTHWISE THEREON TO ADJUST THE OPERATING CHARACTERISTICS OF THE CONTACTS, AND A CASING SURROUNDING SAID TUBE AND COIL, SAID CASING BEING SPLIT LONGITUDINALLY TO PERMIT EXPANSION OF THE CASING SO AS TO ALLOW LIMITED LONGITUDINAL ADJUSTMENT
Claim 2
Dependent Claim
53 words
A REED RELAY COMPRISING A TUBE, REED CONTACTS SEALED THEREIN, A COIL SURROUNDING SAID TUBE AND SLIDABLE LENGTHWISE THEREON TO ADJUST THE OPERATING CHARACTERISTICS OF THE CONTACTS, AND A CASING SURROUNDING SAID TUBE AND COIL, SAID CASING BEING SPLIT LONGITUDINALLY TO PERMIT EXPANSION OF THE CASING SO AS TO ALLOW LIMITED LONGITUDINAL ADJUSTMENT
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2999915A
Cited
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Cited
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Cited
US3167625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |