US2943636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid handling structure
Assignee: Phillips Petroleum Co
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Filing: 1957-12-16
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Granted: 1960-07-05
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Reed
- 👤 Rue Harold E La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:59
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; E03B9/04; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1804; Y10T137/3367; Y10T137/3421; Y10T137/3476; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727; Y10T137/7754; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |