US2745233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiautomatic book-forming machine and method
Assignee: Dow Silicones Corp
•
Filing: 1951-03-10
•
Granted: 1956-05-15
•
Expires: 1971-03-10
Abstract
No abstract record available.
Inventors
- 👤 William R Collings
- 👤 Harold L Browne
- 👤 Arthur A Weirauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/27; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/22; B26D1/225; B26D11/00; B29; B29C; B29C53/00; B29C53/36; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4458; Y10T83/446
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |