US3082948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigonometric calculator
Assignee: Individual
•
Filing: 1960-07-15
•
Granted: 1963-03-26
•
Expires: 1980-07-15
Abstract
No abstract record available.
Inventors
- 👤 Simini Joseph Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A CALCULATOR OF THE CHARACTER DESCRIBED COMPRISING A BASE AND A ROTARY MEMBER MOUNTED TO ROTATE ON THE BASE, SAID ROTARY MEMBER COVERING A PORTION OF THE BASE AND LEAVING UNCOVERED A MARGINAL PORTION OUTSIDE THE PERIMETER OF THE ROTARY MEMBER; SAID MARGINAL PORTION OF THE BASE BEING DIVIDED INTO LARGE SEGMENTS AND EACH LARGE SEGMENT BEARING INDICIA WHICH INDICATE A PARTICULAR UNKNOWN ELEMENT OF TRIGONOMETRIC OR GEOMETRIC PROBLEMS, EACH SAID LARGE SEGMENT BEING FURTHER DIVIDED INTO SMALL SEGMENTS EACH BEARING INDICIA REPRESENTATIVE OF KNOWN ELEMENTS OF A TRIGONOMETRIC OR GEOMETRIC PROBLEM, ALL SAID LARGE AND SMALL SEGMENTS BEING VISIBLE IN ANY POSITION OF SAID ROTARY MEMBER; THE COVERED PORTION OF SAID BASE BEARING ANSWERS TO SAID PROBLEMS; SAID ROTARY MEMBER HAVING A FIRST SIGHTING MEANS FOR ALIGNMENT WITH ANY SELECTED SMALL MARGINAL SEGMENT AND WITH THE INDICIA THEREON, SAID ROTARY MEMBER BEING ALSO FORMED WITH A SECOND SIGHTING MEANS IN THE FORM OF AN APERTURE FOR REVEALING THE ANSWER ON THE COVERED PORTION OF THE BASE CORRESPONDING TO THE SELECTED PROBLEM.
Claim 2
Dependent Claim
172 words
A CALCULATOR OF THE CHARACTER DESCRIBED COMPRISING A BASE AND A ROTARY MEMBER MOUNTED TO ROTATE ON THE BASE, SAID ROTARY MEMBER COVERING A PORTION OF THE BASE AND LEAVING UNCOVERED A MARGINAL PORTION OUTSIDE THE PERIMETER OF THE ROTARY MEMBER; SAID MARGINAL PORTION OF THE BASE BEING DIVIDED INTO LARGE SEGMENTS AND EACH LARGE SEGMENT BEARING INDICIA WHICH INDICATE A PARTICULAR UNKNOWN ELEMENT OF TRIGONOMETRIC OR GEOMETRIC PROBLEMS, EACH SAID LARGE SEGMENT BEING FURTHER DIVIDED INTO SMALL SEGMENTS EACH BEARING INDICIA REPRESENTATIVE OF KNOWN ELEMENTS OF A TRIGONOMETRIC OR GEOMETRIC PROBLEM, ALL SAID LARGE AND SMALL SEGMENTS BEING VISIBLE IN ANY POSITION OF SAID ROTARY MEMBER; THE COVERED PORTION OF SAID BASE BEARING ANSWERS TO SAID PROBLEMS; SAID ROTARY MEMBER HAVING A FIRST SIGHTING MEANS FOR ALIGNMENT WITH ANY SELECTED SMALL MARGINAL SEGMENT AND WITH THE INDICIA THEREON, SAID ROTARY MEMBER BEING ALSO FORMED WITH A SECOND SIGHTING MEANS IN THE FORM OF AN APERTURE FOR REVEALING THE ANSWER ON THE COVERED PORTION OF THE BASE CORRESPONDING TO THE SELECTED PROBLEM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |