US2968203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette wrench
Assignee: Dow Chemical Co
•
Filing: 1959-06-12
•
Granted: 1961-01-17
•
Expires: 1979-06-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Crafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/50; B25B13/5008; B25B13/5016; B25B13/5075; B25B27/00; B25B27/0035; B25B27/0042; D; D01; D01D; D01D4/00; D01D4/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US348185A
Cited
US1224801A
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US1682097A
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US2287069A
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FR921575A
Cited
US2447994A
Cited
FR936855A
Cited
FR979774A
Cited
US2834046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |