Patent US2369488A successfully refreshed from Google Patents.
US2369488A
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Method of making hollow articles
Assignee: Leesona Corp
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Filing: 1940-08-14
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Granted: 1945-02-13
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Expires: 1960-08-14
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:24
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C43/38; B29C43/02; B29C43/04; B29C43/06; B29C43/08; B29C43/52; B29C43/56; B29D; B29D22/00; D; D21; D21J; D21J3/00; D21J3/08; D21J5/00; B29C43/34; B29C2043/3466; B29C2791/00; B29C2791/001; B29C43/006; B29L; B29L2031/00; B29L2031/712; Y; Y10; Y10S; Y10S264/00; Y10S264/78
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) | 1948-02-13 | 1948-08-14 | 1949-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-13 | 1952-08-14 | 1953-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-13 | 1956-08-14 | 1957-02-13 | $7700.00 | Window Closed / Lapsed |