Patent US2752891A successfully refreshed from Google Patents.
Patent US2834106A successfully refreshed from Google Patents.
US2834106A
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Apparatus for splitting tubes
Assignee: Diamond Shamrock Corp
•
Filing: 1956-11-19
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Granted: 1958-05-13
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Christy F Conder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:06
CPC Classifications
B; B23; B23D; B23D3/00; B23D3/02; B25; B25B; B25B27/00; F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/104; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49352; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/2238; Y10T407/224; Y10T407/2242; Y10T407/2252; Y10T407/2262
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB189801420A
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US817319A
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US1276458A
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US1448170A
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US1598458A
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US1970016A
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US2105757A
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US2176626A
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US2391794A
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US2427843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |