Patent US2022288A successfully refreshed from Google Patents.
US2022288A
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Assignee: Individual
•
Filing: 1934-04-05
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Granted: 1935-11-26
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Expires: 1954-04-05
Abstract
No abstract record available.
Inventors
- 👤 Knapp Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:18
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/20; B27B5/201; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4828; B23Q1/70; B23Q1/706; B27C; B27C9/00; B27C9/02; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7768; Y10T83/7772; Y10T83/929; Y10T83/9457; Y10T83/9464; Y10T83/9469; Y10T83/9488; Y10T83/949
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) | 1938-11-25 | 1939-05-27 | 1939-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-25 | 1943-05-27 | 1943-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-25 | 1947-05-27 | 1947-11-26 | $7700.00 | Window Closed / Lapsed |