US2150431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacity selector for carrier conveyer systems
Assignee: Western Union Telegraph Co
•
Filing: 1935-05-27
•
Granted: 1939-03-14
•
Expires: 1955-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Adam Drenkard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/36; B65G51/40; B65G51/42; B65G51/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-03-13 | 1942-09-12 | 1943-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-13 | 1946-09-12 | 1947-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-13 | 1950-09-12 | 1951-03-14 | $7700.00 | Window Closed / Lapsed |