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US2491598A
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Packing
Assignee: Cooper Industries LLC
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Filing: 1947-03-24
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Granted: 1949-12-20
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Expires: 1967-03-24
Abstract
No abstract record available.
Inventors
- 👤 Allen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:49
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; F; F16; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US77534A
Cited
US235475A
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US2178698A
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US2194265A
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US2289696A
Cited
US2357411A
Cited
US2416917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |