US2449459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforator grinding fixture
Assignee: HARIG Manufacturing Co
•
Filing: 1946-03-30
•
Granted: 1948-09-14
•
Expires: 1966-03-30
Abstract
No abstract record available.
Inventors
- 👤 Eckert Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:31
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE22867C
Cited
US512545A
Cited
US864546A
Cited
US978851A
Cited
US1377884A
Cited
GB162774A
Cited
US1585706A
Cited
US1698807A
Cited
US2214166A
Cited
US2194089A
Cited
US2352489A
Cited
US2351246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |