US2445290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow cavitied bodies such as rigid hollow panel structures and method of making the same
Assignee: Holoplast Ltd
•
Filing: 1945-02-23
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Granted: 1948-07-13
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Expires: 1965-02-23
Abstract
No abstract record available.
Inventors
- 👤 Gonda Desire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0003; B29C; B29C33/00; B29C33/44; B29C33/48; B29C33/485; B29C66/00; B29C66/70; B29C66/73; B29C66/737; B29C66/7375; B29C66/73751; B29C66/73752; B29C66/739; B29C66/7394; B29C66/73941; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29D24/00; B29D24/002; B29D24/004; B29D24/008; B29D99/001; B29D99/0021; B31; B31F; B31F1/00; B31F7/00; B31F7/002; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24744
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |