Patent US2714932A successfully refreshed from Google Patents.
US2714932A
Expired / Lapsed
US
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Bridging plug
Assignee: Lane Wells Co
•
Filing: 1951-08-08
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Granted: 1955-08-09
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Expires: 1971-08-08
Abstract
No abstract record available.
Inventors
- 👤 Archie E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:10
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1564699A
Cited
US2345873A
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US2392455A
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US2376605A
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US2383453A
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US2598340A
Cited
US2578900A
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US2589506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |