US3428366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control arrangement
Assignee: Gulf Oil Corp
•
Filing: 1967-05-19
•
Granted: 1969-02-18
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Charles H Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:27
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/60; B01; B01J; B01J8/00; B01J8/0015; B01J8/003; B01J8/004; B01J2208/00; B01J2208/00743; B01J2208/00752; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |