US2558788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web-flexing apparatus
Assignee: Hoague Sprague Corp
•
Filing: 1948-04-16
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Granted: 1951-07-03
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Expires: 1968-04-16
Abstract
No abstract record available.
Inventors
- 👤 George S Sillars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:51
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/10; B; B65; B65H; B65H19/00; B65H19/10; B65H19/14; G03G; G03G15/00; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/4171; B65H2301/4173; B65H2301/41734
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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |