Patent US2026672A successfully refreshed from Google Patents.
US2026672A
Expired / Lapsed
US
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Power cylinder
Assignee: Individual
•
Filing: 1931-10-31
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Granted: 1936-01-07
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Expires: 1951-10-31
Abstract
No abstract record available.
Inventors
- 👤 Niels A Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:50
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/221
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) | 1939-01-06 | 1939-07-08 | 1940-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-06 | 1943-07-08 | 1944-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-06 | 1947-07-08 | 1948-01-07 | $7700.00 | Window Closed / Lapsed |