US2511292A
Expired / Lapsed
US
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Assignee: New Britain Machine Co
•
Filing: 1945-02-10
•
Granted: 1950-06-13
•
Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Freeman R Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/23; B01D29/27; B01D29/50; B01D29/52; B01D29/54
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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |