US3258658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic cylinder squares
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/15; B23Q3/154; B23Q3/1546
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A MAGNETIC CYLINDER SQUARE COMPRISING A TUBULAR METAL HOUSING HAVING THE ENDS THEREOF DISPOSED NORMAL TO THE LONGITUDINAL AXIS THEREOF, A NON-MAGNETIC SLEEVE FIXED IN SAID HOUSING AT ONE END THEREOF, A MAGNETIZABLE PAD FIXED IN THE OUTER END OF SAID SLEEVE INCLUDING AT LEAST ONE MAGNETIZABLE BAR EXTENDING DIAMETRICALLY THEREACROSS AND THERETHROUGH, A PISTON TURNABLY MOUNTED IN SAID SLEEVE INCLUDING AT LEAST ONE PERMANENT MAGNETIC BAR EXTENDING DIAMETRICALLY THEREACROSS AND LONGITUDINALLY THEREOF, SAID PISTON BEING DISPOSED IN SAID SLEEVE WITH ITS PERMANENT MAGNETIC BAR IN JUXTAPOSITION WITH SAID MAGNETIZABLE BAR,
Claim 2
Dependent Claim
91 words
A MAGNETIC CYLINDER SQUARE COMPRISING A TUBULAR METAL HOUSING HAVING THE ENDS THEREOF DISPOSED NORMAL TO THE LONGITUDINAL AXIS THEREOF, A NON-MAGNETIC SLEEVE FIXED IN SAID HOUSING AT ONE END THEREOF, A MAGNETIZABLE PAD FIXED IN THE OUTER END OF SAID SLEEVE INCLUDING AT LEAST ONE MAGNETIZABLE BAR EXTENDING DIAMETRICALLY THEREACROSS AND THERETHROUGH, A PISTON TURNABLY MOUNTED IN SAID SLEEVE INCLUDING AT LEAST ONE PERMANENT MAGNETIC BAR EXTENDING DIAMETRICALLY THEREACROSS AND LONGITUDINALLY THEREOF, SAID PISTON BEING DISPOSED IN SAID SLEEVE WITH ITS PERMANENT MAGNETIC BAR IN JUXTAPOSITION WITH SAID MAGNETIZABLE BAR,
References Cited (Backward Citations)
US2471067A
Cited
US2888617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |