Patent US2215532A successfully refreshed from Google Patents.
US2215532A
Expired / Lapsed
US
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Method and apparatus relating to insulated vessels and structures of great variety
Assignee: Individual
•
Filing: 1935-02-20
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Granted: 1940-09-24
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Expires: 1955-02-20
Abstract
No abstract record available.
Inventors
- 👤 Richardson Edward Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:07
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/38; B65D81/3802; B65D81/3811; B65D81/3813; B65D81/382; F; F16; F16L; F16L59/00; F16L59/14; F16L59/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-09-24 | 1944-03-25 | 1944-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-24 | 1948-03-25 | 1948-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-24 | 1952-03-25 | 1952-09-24 | $7700.00 | Window Closed / Lapsed |