US2932964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank construction
Assignee: PREIOAD Co Inc
•
Filing: 1955-10-25
•
Granted: 1960-04-19
•
Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Dobell Curzon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:32
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6812; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/106; E02; E02B; E02B3/00; E02B3/16; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; Y; Y10; Y10S; Y10S425/00; Y10S425/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189616877A
Cited
US1031050A
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US1571484A
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US1953846A
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US2228052A
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US2431384A
Cited
US2316660A
Cited
US2433652A
Cited
GB579710A
Cited
US2507259A
Cited
US2597084A
Cited
GB646268A
Cited
US2803868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |