US2953147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling rate control
Assignee: Phillips Petroleum Co
•
Filing: 1956-11-15
•
Granted: 1960-09-20
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Hornback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:01
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/46; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/2574; Y10T137/2577; Y10T137/2579; Y10T137/2599; Y10T137/7287; Y10T137/7297; Y10T137/7358; Y10T137/7368; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2012362A
Cited
US2379215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |