US2679920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective transport mechanism
Assignee: J Lyons and Co Ltd
•
Filing: 1950-06-28
•
Granted: 1954-06-01
•
Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur H V Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:06
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/26; B65G47/30; B65G47/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US722937A
Cited
US770260A
Cited
US1143829A
Cited
US1654689A
Cited
US1574914A
Cited
US1803391A
Cited
US1968547A
Cited
US2516985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |