Patent US2019244A successfully refreshed from Google Patents.
US2019244A
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Assignee: Individual
•
Filing: 1934-08-02
•
Granted: 1935-10-29
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Expires: 1954-08-02
Abstract
No abstract record available.
Inventors
- 👤 Sr John Bergesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:53
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/08; Y; Y10; Y10S; Y10S137/00; Y10S137/902; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7935
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) | 1938-10-28 | 1939-04-29 | 1939-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-10-28 | 1943-04-29 | 1943-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-10-28 | 1947-04-29 | 1947-10-29 | $7700.00 | Window Closed / Lapsed |