Patent US2682102A successfully refreshed from Google Patents.
US2682102A
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US
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Drill pipe protector apparatus
Assignee: Byron Jackson Co
•
Filing: 1949-06-14
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Granted: 1954-06-29
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Expires: 1969-06-14
Abstract
No abstract record available.
Inventors
- 👤 Albert L Stone
- 👤 Rodney R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:59
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/12; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657; Y10T29/53665; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |