US2952479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal
Assignee: MCEVOY CO
•
Filing: 1953-12-31
•
Granted: 1960-09-13
•
Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Allen F Rhodes
- 👤 Eichenberg Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B2200/00; E21B2200/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2704579A
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US696106A
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US1572922A
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US2065726A
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US2097943A
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US2122071A
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US2278721A
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US2444868A
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US2562003A
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US2491599A
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US2536898A
Cited
US2605993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |