US2528295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating device
Assignee: Landis Tool Co
•
Filing: 1944-04-21
•
Granted: 1950-10-31
•
Expires: 1964-04-21
Abstract
No abstract record available.
Inventors
- 👤 Harold E Balsiger
- 👤 Williams C C Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:40
CPC Classifications
B; B24; B24B; B24B49/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US191586A
Cited
US1225858A
Cited
US1456938A
Cited
US1792043A
Cited
US1832511A
Cited
US2065951A
Cited
US2240536A
Cited
US2177399A
Cited
US2237496A
Cited
US2331779A
Cited
US2302090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |