US3311997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Numerals balance scale
Assignee: Kusan Inc
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Filing: 1965-01-05
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Granted: 1967-04-04
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Expires: 1985-01-05
Abstract
No abstract record available.
Inventors
- 👤 Carl B Denny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:24
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02; G01; G01G; G01G1/00; G01G1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE COMBINATION WITH AN UPSTANDING SUPPORTING FRAME HAVING A FULCRUM AND A SUM AND DIFFERENCE INDICATING NUMBER SCALE ARRANGED THEREON, A BALANCE ARM PIVOTALLY MOUNTED ON THE FULCRUM AND HAVING AN INDICATING ARM FIXED THERETO AND MOVABLE ALONG THE NUMBER SCALE, AND NUMERAL RECEIVING MEANS ADJACENT OPPOSITE ENDS OF THE BALANCE ARM FOR RECEIVING WEIGHTED NUMERALS TO BE ADDED AND SUBTRACTED; OF A PLURALITY OF WEIGHTED NUMERALS SELECTIVELY POSITIONABLE ON SAID NUMERAL-RECEIVING MEANS TO EFFECT MOVEMENT OF SAID BALANCE ARM ABOUT SAID FULCRUM AND SAID INDICATING ARM ALONG SAID NUMBER SCALE TO A NUMBER INDICATING THE SUM AND DIFFERENCE OF SAID WEIGHTED NUMBERS.
Claim 2
Dependent Claim
103 words
THE COMBINATION WITH AN UPSTANDING SUPPORTING FRAME HAVING A FULCRUM AND A SUM AND DIFFERENCE INDICATING NUMBER SCALE ARRANGED THEREON, A BALANCE ARM PIVOTALLY MOUNTED ON THE FULCRUM AND HAVING AN INDICATING ARM FIXED THERETO AND MOVABLE ALONG THE NUMBER SCALE, AND NUMERAL RECEIVING MEANS ADJACENT OPPOSITE ENDS OF THE BALANCE ARM FOR RECEIVING WEIGHTED NUMERALS TO BE ADDED AND SUBTRACTED; OF A PLURALITY OF WEIGHTED NUMERALS SELECTIVELY POSITIONABLE ON SAID NUMERAL-RECEIVING MEANS TO EFFECT MOVEMENT OF SAID BALANCE ARM ABOUT SAID FULCRUM AND SAID INDICATING ARM ALONG SAID NUMBER SCALE TO A NUMBER INDICATING THE SUM AND DIFFERENCE OF SAID WEIGHTED NUMBERS.
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |