Patent US2917822A successfully refreshed from Google Patents.
US2917822A
Expired / Lapsed
US
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Method of making a pipe joint
Assignee: Reed Roller Bit Co
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Filing: 1955-06-24
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Granted: 1959-12-22
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Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 Elvin G Boice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:29
CPC Classifications
F; F16; F16L; F16L13/00; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; F16L13/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1820069A
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US1934022A
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US1935425A
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US2233455A
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US2267339A
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US2273736A
Cited
US2301495A
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US2378525A
Cited
US2585237A
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US2711912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |