US2461376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stretching mechanism
Assignee: Blaw Knox Co
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Filing: 1947-05-28
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Granted: 1949-02-08
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Expires: 1967-05-28
Abstract
No abstract record available.
Inventors
- 👤 Feldmeier Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:26
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/04; B41F23/06; B65; B65H; B65H5/00; B65H5/08; B65H5/12
Claims Analysis
Total Claims: 0
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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) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |