US2954937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shredding machines
Assignee: Grundler Crusher and Pulverizer Co
•
Filing: 1957-04-26
•
Granted: 1960-10-04
•
Expires: 1977-04-26
Abstract
No abstract record available.
Inventors
- 👤 Freeman Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:03
CPC Classifications
C; C13; C13B; C13B5/00; C13B5/04; B; B02; B02C; B02C19/00; B02C19/0056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US297755A
Cited
US349607A
Cited
US906346A
Cited
US1078650A
Cited
US1286831A
Cited
GB208046A
Cited
US1606692A
Cited
US1643938A
Cited
US1808264A
Cited
US1947700A
Cited
US2478733A
Cited
US2828922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |