US2464456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid control for storage tanks
Assignee: Individual
•
Filing: 1945-05-04
•
Granted: 1949-03-15
•
Expires: 1965-05-04
Abstract
No abstract record available.
Inventors
- 👤 John J Mcgillis
- 👤 Hugh D Mcgillis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:19
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/36; B67D7/362; B67D7/365; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7361; Y10T137/7381; Y10T137/7394; Y10T137/7397; Y10T137/7439; Y10T137/7465; Y10T137/7472; Y10T137/9464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1427965A
Cited
US1733551A
Cited
US1709263A
Cited
US1732107A
Cited
US1929390A
Cited
US2244982A
Cited
US2249180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |