US3469455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring changes in the weight of a sample
Assignee: CHYO BALANCE CORP
•
Filing: 1967-04-07
•
Granted: 1969-09-30
•
Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 Shigeo Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
G; G01; G01G; G01G1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US201984A
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US401428A
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US779873A
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US2244507A
Cited
US2459618A
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US2622438A
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US3061027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |