US2449690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for feeding sheets of stiff fibrous material
Assignee: International Paper Box Machine Co
•
Filing: 1945-08-21
•
Granted: 1948-09-21
•
Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Fred H Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/30; B65H3/08; B65H3/0808; B65H3/085; B65H3/0858; B65H3/0866
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) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |