US2631349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for clamping flexible material on cylinders
Assignee: SARA JOYCE EISENHOOD
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Filing: 1950-11-16
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Granted: 1953-03-17
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Expires: 1970-11-16
Abstract
No abstract record available.
Inventors
- 👤 Fred K Houston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:22
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/28; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41422; B65H2301/414225; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/4453
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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |