US2856004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe sealing device
Assignee: Jersey Production Research Co
•
Filing: 1955-01-17
•
Granted: 1958-10-14
•
Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Algernon S Badger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:43
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; E; E21; E21B; E21B17/00; E21B17/006; Y; Y10; Y10S; Y10S277/00; Y10S277/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US694196A
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US1710580A
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GB311319A
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US1838546A
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DE591149C
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US2199020A
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US2571934A
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US2445645A
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US2617134A
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US2716456A
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US2715943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |