Patent US1783697A successfully refreshed from Google Patents.
Patent US3208153A successfully refreshed from Google Patents.
US3208153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting instrument
Assignee: Individual
•
Filing: 1962-07-30
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Granted: 1965-09-28
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Magiera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:58
CPC Classifications
B; B43; B43L; B43L7/00; B43L7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A DRAFTING INSTRUMENT FOR LOCATING CENTER POINTS ON DRAWING SHEETS, COMPRISING A PLATE-LIKE BODY OF TRANSPARENT MATERIAL HAVING A RELATIVELY LONG STRAIGHT EDGE ON ONE SIDE FOR ENGAGEMENT WITH A STRAIGHT EDGE ON THE DRAWING BOARD AND A RELATIVELY SHORT EDGE ON THE OPPOSITE SIDE, A FRUSTO-CONICALLY SHAPED RECESS EXTENDING INWARDLY FROM THE UPPER SURFACE OF SAID BODY, SAID RECESS BEING CONNECTED BY A HOLE AT ITS CENTER WITH THE LOWER SURFACE, SPACED INDICATORS ON SAID BODY, SUCH THAT IF CONNECTED BY LINES, SAID LINES WOULD INTERSECT ONE ANOTHER AT RIGHT ANGLES AT SAID RECESS, A RESILIENT MEMBER SECURED AT ONE END TO THE UPPER SURFACE OF SAID BODY AND HAVING A FRUSTOCONICALLY SHAPED HEAD AT THE OTHER END OF SUBSTANTIALLY THE SAME SIZE AS SAID RECESS FOR SEATING THEREIN, AND A PIN EXTENDING VERTICALLY THROUGH AND THREADEDLY RECEIVED IN SAID HEAD AND HAVING A SHARP POINT ON ITS LOWER END PROJECTING BELO SAID HEAD.
Claim 2
Dependent Claim
155 words
A DRAFTING INSTRUMENT FOR LOCATING CENTER POINTS ON DRAWING SHEETS, COMPRISING A PLATE-LIKE BODY OF TRANSPARENT MATERIAL HAVING A RELATIVELY LONG STRAIGHT EDGE ON ONE SIDE FOR ENGAGEMENT WITH A STRAIGHT EDGE ON THE DRAWING BOARD AND A RELATIVELY SHORT EDGE ON THE OPPOSITE SIDE, A FRUSTO-CONICALLY SHAPED RECESS EXTENDING INWARDLY FROM THE UPPER SURFACE OF SAID BODY, SAID RECESS BEING CONNECTED BY A HOLE AT ITS CENTER WITH THE LOWER SURFACE, SPACED INDICATORS ON SAID BODY, SUCH THAT IF CONNECTED BY LINES, SAID LINES WOULD INTERSECT ONE ANOTHER AT RIGHT ANGLES AT SAID RECESS, A RESILIENT MEMBER SECURED AT ONE END TO THE UPPER SURFACE OF SAID BODY AND HAVING A FRUSTOCONICALLY SHAPED HEAD AT THE OTHER END OF SUBSTANTIALLY THE SAME SIZE AS SAID RECESS FOR SEATING THEREIN, AND A PIN EXTENDING VERTICALLY THROUGH AND THREADEDLY RECEIVED IN SAID HEAD AND HAVING A SHARP POINT ON ITS LOWER END PROJECTING BELO SAID HEAD.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |