US2522401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient shell
Assignee: Individual
•
Filing: 1944-11-22
•
Granted: 1950-09-12
•
Expires: 1964-11-22
Abstract
No abstract record available.
Inventors
- 👤 Rava Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:30
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/02; F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US290135A
Cited
US425099A
Cited
US492463A
Cited
US643743A
Cited
GB190110817A
Cited
US924398A
Cited
US1977685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |