US3229780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibrated spring weighing scale
Assignee: Hanson Scale Co
•
Filing: 1964-04-03
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Granted: 1966-01-18
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Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Stan B Hanssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:08
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/02; Y; Y10; Y10S; Y10S116/00; Y10S116/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US28838A
Cited
US326067A
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US338894A
Cited
US629290A
Cited
US1052023A
Cited
US2340958A
Cited
US2593060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |