Patent US1514211A successfully refreshed from Google Patents.
Patent US1844081A successfully refreshed from Google Patents.
US1844081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper winding mechanism
Assignee: BAGLEY AND SEWALL Co
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Filing: 1929-09-12
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Granted: 1932-02-09
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Expires: 1949-09-12
Abstract
No abstract record available.
Inventors
- 👤 Charles W Valentine
- 👤 Alfred F Helin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:25
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/2238; B65H19/2253; 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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-02-08 | 1935-08-10 | 1936-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-08 | 1939-08-10 | 1940-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-08 | 1943-08-10 | 1944-02-09 | $7700.00 | Window Closed / Lapsed |