US2987199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage unit
Assignee: Michigan Tool Co
•
Filing: 1957-06-05
•
Granted: 1961-06-06
•
Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 Felix F Zawaski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:26
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/02; B23F23/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US392128A
Cited
US746247A
Cited
US1004427A
Cited
US1004998A
Cited
US1159728A
Cited
US1970574A
Cited
US2146533A
Cited
US2328240A
Cited
US2304455A
Cited
US2430407A
Cited
US2470922A
Cited
US2726753A
Cited
US2789678A
Cited
US2772005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |