US2345144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hollow products
Assignee: Individual
•
Filing: 1940-03-28
•
Granted: 1944-03-28
•
Expires: 1960-03-28
Abstract
No abstract record available.
Inventors
- 👤 Opavsky Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/46; Y; Y10; Y10S; Y10S264/00; Y10S264/66; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324; Y10T428/24; Y10T428/24942
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) | 1947-03-28 | 1947-09-27 | 1948-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-28 | 1951-09-27 | 1952-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-28 | 1955-09-27 | 1956-03-28 | $7700.00 | Window Closed / Lapsed |