US2693742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separating and stacking machine
Assignee: AMERICAN BOX BOARD CO
•
Filing: 1951-02-09
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Granted: 1954-11-09
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Expires: 1971-02-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
B; B65; B65H; B65H35/00; B65H35/10; B31; B31B; B31B2100/00; B31B2100/002; B31B2100/0022; B31B2110/00; B31B2110/30; B31B2110/35; B31B50/00; B31B50/02; B31B50/04; B31B50/042; B31B50/06; B31B50/062; B31B50/064; B31B50/14; B31B50/20; B31B50/74; B31B50/92; B31B50/98; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/336; Y10T225/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1257853A
Cited
US1717696A
Cited
US1925582A
Cited
US2121186A
Cited
GB531329A
Cited
US2308551A
Cited
US2440840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |