Patent US3714016A successfully refreshed from Google Patents.
US3185232A
Expired / Lapsed
US
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Spring balance
Assignee: Sankyo Co Ltd
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Filing: 1964-02-12
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Granted: 1965-05-25
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Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Iwasaki Kanesuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:49
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/02; G01G3/00; G01G3/02; Y; Y10; Y10S; Y10S177/00; Y10S177/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A SPRING BALANCE COMPRISING A FRAME, A FIRST MAGNETIZED BODY FIXED IN SAID FRAME, A SECOND MAGNETIZED BODY VERTICALLY BELOW AND SPACED FROM SAID FIRST BODY, A VERTICAL ROD FIXED TO SAID SECOND BODY AND DEPENDING THEREFROM, A COIL SPRING MEMBER SURROUNDING SAID ROD BELOW SAID FRAME, SAID SPRING MEMBER HAVING ONE END ATTACHED TO SAID FRAME AND THE OTHER END ATTACHED TO SAID ROD, AND A WEIGHT HOLDER ATTACHED TO THE LOWER PORTION OF SAID ROD.
Claim 2
Dependent Claim
77 words
A SPRING BALANCE COMPRISING A FRAME, A FIRST MAGNETIZED BODY FIXED IN SAID FRAME, A SECOND MAGNETIZED BODY VERTICALLY BELOW AND SPACED FROM SAID FIRST BODY, A VERTICAL ROD FIXED TO SAID SECOND BODY AND DEPENDING THEREFROM, A COIL SPRING MEMBER SURROUNDING SAID ROD BELOW SAID FRAME, SAID SPRING MEMBER HAVING ONE END ATTACHED TO SAID FRAME AND THE OTHER END ATTACHED TO SAID ROD, AND A WEIGHT HOLDER ATTACHED TO THE LOWER PORTION OF SAID ROD.
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |