Patent US2493590A successfully refreshed from Google Patents.
US2493590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for positioning cores
Assignee: Marathon Corp
•
Filing: 1947-10-22
•
Granted: 1950-01-03
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 William G Mueller
- 👤 Klause Karl
- 👤 Anton M Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:38
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/30; B65H19/305; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148; B65H2301/4149; B65H2301/41493; B65H2301/417; B65H2301/418; B65H2301/4181; B65H2301/41814; B65H2301/4182; B65H2301/41826; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53478
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1229075A
Cited
US1302280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |