Patent US2735243A successfully refreshed from Google Patents.
US2735243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive cutting
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:58
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/02; B23D61/10; B23D61/025; B23D61/026; B24; B24D; B24D5/00; B24D5/10; B24D5/12; B24D5/123
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1616531A
Cited
US1947662A
Cited
US2027132A
Cited
US2092591A
Cited
FR813109A
Cited
US2268663A
Cited
FR950861A
Cited
GB547752A
Cited
US2361492A
Cited
FR950453A
Cited
US2457516A
Cited
US2572042A
Cited
US2616230A
Cited
US2589661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |