Patent US3268684A successfully refreshed from Google Patents.
US3268684A
Expired / Lapsed
US
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Mechanically operable magnetic reed switch
Assignee: International Business Machines Corp
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Filing: 1964-04-28
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Granted: 1966-08-23
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Keller
- 👤 James M Mckeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:05
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/004; H01H36/00; H01H36/0006; H01H36/0013; H01H36/008; H01H51/00; H01H51/28; H01H51/281
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A DOUBLE THROW SWITCH, COMPRISING: A FIRST PAIR OF MAGNETIC REED CONTACTS; A SECOND PAIR OF MAGNETIC REED CONTACTS SUBSTANTIALLY COPLANAR WITH SAID FIRST PAIR OF CONTACTS; A BAR MAGNET SLIDABLY SUPPORTED ADJACENT SAID REED CONTACTS, SAID MAGNET HAVING POLES AT ITS ENDS AND BEING RECIPROCABLE ALONG A LINE JOINING SAID POLES, SAID LINE LYING SUBSTANTIALLY PARALLEL TO SAID PLANE OF SAID REED CONTACTS; AND MEANS FOR MOVING SAID MAGNET FROM AN INITIAL POSITION, WHERE SAID MAGNET BIASES SAID FIRST PAIR OF REED CONTACTS CLOSED, TO A FINAL POSITION, WHERE SAID MAGNET BIASES SAID SECOND PAIR OF REED CONTACTS CLOSED, THE GAP BETWEEN SAID FIRST PAIR OF REED CONTACTS BEING LOCATED, WHEN SAID MAGNET IS IN SAID INITIAL POSITION, BETWEEN TWO PARALLEL PLANES, EACH SAID PLANE INTERSECTING SAID MAGNET PERPENDICULAR TO SAID LINE AT A POINT SUBSTANTIALLY MIDWAY BETWEEN AND END AND THE MIDDLE OF SAID MAGNET, AND THE
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |