US2340936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling device
Assignee: Phillips Petroleum Co
•
Filing: 1941-04-07
•
Granted: 1944-02-08
•
Expires: 1961-04-07
Abstract
No abstract record available.
Inventors
- 👤 William D Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0329; F17C2205/0388; F17C2205/0394; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/02; F17C2260/022; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7781; Y10T137/7784; Y10T137/7786
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-02-07 | 1947-08-09 | 1948-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-07 | 1951-08-09 | 1952-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-07 | 1955-08-09 | 1956-02-08 | $7700.00 | Window Closed / Lapsed |