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Patent US2883059A successfully refreshed from Google Patents.
US2883059A
Expired / Lapsed
US
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Settling device
Assignee: National Research Council Canada
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Filing: 1957-05-10
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Granted: 1959-04-21
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Ira E Puddington
- 👤 Allan E Mcilhinney
- 👤 Lorenzo Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:41
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/62
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |