US2632226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold for casting monolithic spherical tanks
Assignee: Individual
•
Filing: 1949-08-18
•
Granted: 1953-03-24
•
Expires: 1969-08-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:19
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/06; B; B28; B28B; B28B7/00; B28B7/16; B28B7/168; B28B7/28; B28B7/30; B28B7/303; E04G11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US750468A
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US2495100A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |