US3381880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Phillips Petroleum Co
•
Filing: 1966-08-01
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Granted: 1968-05-07
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 John V Lewallen
- 👤 Robert A Carle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/30; B65D5/2052; B65D5/2057; B65D5/22; B65D2301/00; B65D2301/20; Y; Y10; Y10T; Y10T24/00; Y10T24/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US407494A
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US926208A
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US1824927A
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US2804234A
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US3067924A
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US3118201A
Cited
US3148822A
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US3131849A
Cited
US3222437A
Cited
US3224055A
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US3283378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |