Patent JPS5828048A successfully refreshed from Google Patents.
US3083901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computers
Assignee: Individual
•
Filing: 1960-01-25
•
Granted: 1963-04-02
•
Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Edwin Z Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:29
CPC Classifications
G; G06; G06G; G06G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A BASAL PLATE HAVING A FLAT FACE PROVIDED WITH A SUPERPOSED STRAIGHT EDGE NEAR TO AND PARALLEL WITH BUT FACING IN A DIRECTION OPPOSITE FROM DIRECTION OF ONE EDGE OF SAID FLAT FACE, A RIDER HAVING SLIDING ENGAGEMENT AGAINST SAID FACE AND PROVIDED WITH A FOOT WITH AN EDGE SLIDABLE AGAINST SAID STRAIGHT EDGE, A PERMANENT MAGNET CARRIED BY SAID FOOT FOR MAINTAINING CONTACT BETWEEN SAID RIDER FOOT AND SAID STRAIGHT EDGE, AND A MAGNETICALLY ATTRACTIVE STRIP PROXIMATE TO BUT SPACED FROM SAID MAGNET WHEN THE MAGNET IS ATTRACTED TOWARD THE SAME AS TO MAINTAIN THE MAGNET OUT OF CONTACT FROM SAID STRIP DURING ENGAGEMENT OF THE FOOT WITH SAID STRAIGHT EDGE FOR PERMITTING SLIDING OF SAID FOOT ON SAID STRAIGHT EDGE.
Claim 2
Independent Claim
129 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A BASAL PLATE HAVING A FLAT FACE PROVIDED WITH A SUPERPOSED STRAIGHT EDGE NEAR TO AND PARALLEL WITH BUT FACING IN A DIRECTION OPPOSITE FROM DIRECTION OF ONE EDGE OF SAID FLAT FACE, A RIDER HAVING SLIDING ENGAGEMENT AGAINST SAID FACE AND PROVIDED WITH A FOOT WITH AN EDGE SLIDABLE AGAINST SAID STRAIGHT EDGE, A PERMANENT MAGNET CARRIED BY SAID FOOT FOR MAINTAINING CONTACT BETWEEN SAID RIDER FOOT AND SAID STRAIGHT EDGE, AND A MAGNETICALLY ATTRACTIVE STRIP PROXIMATE TO BUT SPACED FROM SAID MAGNET WHEN THE MAGNET IS ATTRACTED TOWARD THE SAME AS TO MAINTAIN THE MAGNET OUT OF CONTACT FROM SAID STRIP DURING ENGAGEMENT OF THE FOOT WITH SAID STRAIGHT EDGE FOR PERMITTING SLIDING OF SAID FOOT ON SAID STRAIGHT EDGE.
References Cited (Backward Citations)
GB133577A
Cited
US200060A
Cited
US875783A
Cited
US1639580A
Cited
US1886370A
Cited
US2306677A
Cited
US2403614A
Cited
US2701096A
Cited
US2822736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |