US2502268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for grooving rolls
Assignee: Tennessee Coal Iron and Railroad Co
•
Filing: 1946-04-23
•
Granted: 1950-03-28
•
Expires: 1966-04-23
Abstract
No abstract record available.
Inventors
- 👤 Percy R Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
B; B23; B23Q; B23Q23/00; B23G; B23G1/00; B23G1/02; B23G1/04; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1195293A
Cited
US1230647A
Cited
US1374378A
Cited
US1630716A
Cited
US1571745A
Cited
US1982983A
Cited
US2069508A
Cited
US2354372A
Cited
US2407778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |