US2989228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punching device
Assignee: International Business Machines Corp
•
Filing: 1958-12-12
•
Granted: 1961-06-20
•
Expires: 1978-12-12
Abstract
No abstract record available.
Inventors
- 👤 Hans H Glattli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:21
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0581; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |