Patent US2228098A successfully refreshed from Google Patents.
US2228098A
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Assignee: Fairbanks Morse and Co
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Filing: 1938-10-14
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Granted: 1941-01-07
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Expires: 1958-10-14
Abstract
No abstract record available.
Inventors
- 👤 Carl H Vaupel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
F; F02; F02N; F02N7/00; F02N7/08; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/137; Y10T74/19; Y10T74/19149; Y10T74/19158
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) | 1944-01-07 | 1944-07-08 | 1945-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-07 | 1948-07-08 | 1949-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-07 | 1952-07-08 | 1953-01-07 | $7700.00 | Window Closed / Lapsed |