US2252733A
Expired / Lapsed
US
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Form bursting and stacking apparatus
Assignee: KATHERINE M SHERMAN
•
Filing: 1938-08-25
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Granted: 1941-08-19
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Expires: 1958-08-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Ratchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:12
CPC Classifications
B; B41; B41L; B41L1/00; B41L1/04; B41L1/08; B65; B65H; B65H35/00; B65H35/10; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/16; Y10T225/30; Y10T225/307; Y10T83/00; Y10T83/04; Y10T83/0448; Y10T83/0462; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/2057; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/215; Y10T83/2155; Y10T83/2157; Y10T83/929; Y10T83/9372; Y10T83/9396; Y10T83/9399
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) | 1944-08-18 | 1945-02-17 | 1945-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-18 | 1949-02-17 | 1949-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-18 | 1953-02-17 | 1953-08-19 | $7700.00 | Window Closed / Lapsed |