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US2689050A
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Assignee: WILLIS R OAKLEY
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Filing: 1951-06-28
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Granted: 1954-09-14
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Expires: 1971-06-28
Abstract
No abstract record available.
Inventors
- 👤 Orval A Albin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:07
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/04; A47F5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US574380A
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US922888A
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US1047882A
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GB144970A
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US1566025A
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US1712389A
Cited
US1900610A
Cited
US1934846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |