US2687174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag cutting means
Assignee: Individual
•
Filing: 1951-06-08
•
Granted: 1954-08-24
•
Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Charles E Richens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:05
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/14; B31B70/16; B31B2160/00; B31B2160/10; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2196; Y10T83/343; Y10T83/727; Y10T83/739; Y10T83/889
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US716938A
Cited
US1144630A
Cited
US2362641A
Cited
GB586653A
Cited
US2593291A
Cited
US2522047A
Cited
US2516143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |