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US2708858A
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Assignee: COLUMBIA BASIN PLASTIES Co
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Filing: 1950-10-16
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Granted: 1955-05-24
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Expires: 1970-10-16
Abstract
No abstract record available.
Inventors
- 👤 Jr James C De Shazor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:23
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191317058A
Cited
US1903748A
Cited
US1966227A
Cited
FR823963A
Cited
US2328407A
Cited
US2354857A
Cited
US2329171A
Cited
US2489499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |