US2530797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crate
Assignee: Individual
•
Filing: 1948-09-04
•
Granted: 1950-11-21
•
Expires: 1968-09-04
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:31
CPC Classifications
F; F42; F42B; F42B39/00; B; B65; B65D; B65D71/00; B65D71/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US182359A
Cited
US288617A
Cited
US557706A
Cited
US808854A
Cited
GB191511498A
Cited
US1274828A
Cited
US1698489A
Cited
US1991481A
Cited
US2303240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |