US3349321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge with automatic zero
Assignee: Celanese Canada Inc
•
Filing: 1964-12-24
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Granted: 1967-10-24
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Arksey Graydon Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01R; G01R17/00; G01R17/10; G01R17/105; G05; G05B; G05B1/00; G05B1/01; G05B1/02
Claims Analysis
Total Claims: 0
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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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |