US1818289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravity discharging platform
Assignee: Individual
•
Filing: 1929-03-25
•
Granted: 1931-08-11
•
Expires: 1949-03-25
Abstract
No abstract record available.
Inventors
- 👤 White Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:30
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/38; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00029; B65D2519/00049; B65D2519/00064; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00293; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00338; B65D2519/00736; B65D2519/00805
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) | 1934-08-10 | 1935-02-09 | 1935-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-10 | 1939-02-09 | 1939-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-10 | 1943-02-09 | 1943-08-11 | $7700.00 | Window Closed / Lapsed |