US2955723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double wall pressure vessel
Assignee: Chicago Bridge and Iron Co
•
Filing: 1954-11-08
•
Granted: 1960-10-11
•
Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Raymund V Mcgrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:03
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/02; B65D90/028; B65D90/06; Y; Y10; Y10S; Y10S220/00; Y10S220/901; Y10S220/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2347070A
Cited
US1755017A
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US1757583A
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CH184870A
Cited
US2220146A
Cited
US2389246A
Cited
US2627184A
Cited
US2690273A
Cited
US2684180A
Cited
US2683950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |