US2785751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card perforating devices
Assignee: COLEMAN WORTHAM JR
•
Filing: 1953-10-09
•
Granted: 1957-03-19
•
Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jones Montgomery Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:36
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/04; B26F1/32; B26F1/36; B26D; B26D7/00; B26D7/26; B26D7/2628; B26F1/38; B26F1/40; B26D2007/0012; B26D2007/0087; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8733; Y10T83/8742; Y10T83/8743; Y10T83/8788
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US827104A
Cited
US1745910A
Cited
US1742216A
Cited
US1839415A
Cited
GB402909A
Cited
US2684717A
Cited
US2694449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |