Patent US2804134A successfully refreshed from Google Patents.
US2804134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet material slitting machine
Assignee: Individual
•
Filing: 1954-02-01
•
Granted: 1957-08-27
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 John G Berry
- 👤 Eugene V Mort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:13
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; B23D19/06; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7809; Y10T83/783; Y10T83/7834
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US144155A
Cited
US448258A
Cited
US474822A
Cited
US529831A
Cited
US672899A
Cited
US1727796A
Cited
US1955944A
Cited
US2210018A
Cited
US2241395A
Cited
US2222051A
Cited
US2613571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |