Patent US22836A successfully refreshed from Google Patents.
US2245221A
Expired / Lapsed
US
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Device for measuring drill pipe
Assignee: Abegg and Reinhold Co
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Filing: 1940-07-01
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Granted: 1941-06-10
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Expires: 1960-07-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Nudson
- 👤 Walter A Abegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:50
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/04; G01B5/043; E; E21; E21B; E21B17/00; E21B17/006; E21B47/00; E21B47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-06-09 | 1944-12-09 | 1945-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-09 | 1948-12-09 | 1949-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-09 | 1952-12-09 | 1953-06-10 | $7700.00 | Window Closed / Lapsed |