US2628417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing perforate bodies
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1950-01-27
•
Granted: 1953-02-17
•
Expires: 1970-01-27
Abstract
No abstract record available.
Inventors
- 👤 Peyches Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:43
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/16; B21; B21C; B21C37/00; B21C37/06; B23; B23P; B23P15/00; B23P15/16; D; D01; D01D; D01D4/00; D01D4/02; D01D4/022; Y; Y10; Y10S; Y10S264/00; Y10S264/44; Y10S425/00; Y10S425/012; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604; Y10T29/4981
Claims Analysis
Total Claims: 0
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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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |