US3495301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube expanding apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1967-06-23
•
Granted: 1970-02-17
•
Expires: 1987-06-23
Abstract
No abstract record available.
Inventors
- 👤 James R Stephens
- 👤 Olaf E Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/0014; B29C53/00; B29C53/22; B29C53/30; B29C55/00; B29C55/22; B29C55/24; B29C57/00; B29C57/02; B29L; B29L2031/00; B29L2031/24; Y; Y10; Y10S; Y10S425/00; Y10S425/218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1486641A
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USRE19000E
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US1251175A
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US1661367A
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US2433546A
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US2974367A
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US3089190A
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US3360826A
Cited
US3383750A
Cited
US3248756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |