US2771981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unscrambler construction
Assignee: Brogdex Co
•
Filing: 1951-03-19
•
Granted: 1956-11-27
•
Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Duane R Mckune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:42
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/68; B65G47/682; B65G47/684; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1492
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |