US2496626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical tank shell
Assignee: PITTSBURGH DES MOINES Co
•
Filing: 1946-07-13
•
Granted: 1950-02-07
•
Expires: 1966-07-13
Abstract
No abstract record available.
Inventors
- 👤 James O Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/02; B65D88/04; F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/232; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2260/00; F17C2260/01; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/1225
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |