US2938552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for trimming and sorting switch ties
Assignee: Southern Wood Preserving Co
•
Filing: 1958-04-16
•
Granted: 1960-05-31
•
Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:29
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/12; B07C5/14; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/525; Y10T83/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1610623A
Cited
US1706632A
Cited
US1853773A
Cited
US2440994A
Cited
US2574974A
Cited
US2616449A
Cited
US2636601A
Cited
US2729248A
Cited
US2778474A
Cited
US2835385A
Cited
US2876815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |