Patent US1928811A successfully refreshed from Google Patents.
US1928811A
Expired / Lapsed
US
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Manipulating mechanism
Assignee: Individual
•
Filing: 1931-10-22
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Granted: 1933-10-03
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Expires: 1951-10-22
Abstract
No abstract record available.
Inventors
- 👤 Frank J Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:25
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/20; B21B39/14; B21B17/00; B21B23/00; B21B39/02; B21B39/12; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6492; Y10T83/6494
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) | 1936-10-02 | 1937-04-03 | 1937-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-02 | 1941-04-03 | 1941-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-02 | 1945-04-03 | 1945-10-03 | $7700.00 | Window Closed / Lapsed |