Patent US2858948A successfully refreshed from Google Patents.
US2858948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for operating on books
Assignee: TW and CB Sheridan Co
•
Filing: 1952-05-10
•
Granted: 1958-11-04
•
Expires: 1972-05-10
Abstract
No abstract record available.
Inventors
- 👤 Paul E Kleineberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:54
CPC Classifications
B; B42; B42C; B42C19/00; B42C19/08; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/102; Y10S414/103; Y10S414/115
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |