Patent US2239632A successfully refreshed from Google Patents.
US2239632A
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US
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Machine synchronizer
Assignee: Individual
•
Filing: 1940-04-16
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Granted: 1941-04-22
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Expires: 1960-04-16
Abstract
No abstract record available.
Inventors
- 👤 Harold A Tenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:58
CPC Classifications
F; F02; F02D; F02D25/00; F02D25/02; B; B63; B63H; B63H23/00; B63H23/28; B63H23/30; F16; F16H; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005; Y10T74/19614
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) | 1944-04-21 | 1944-10-21 | 1945-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-21 | 1948-10-21 | 1949-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-21 | 1952-10-21 | 1953-04-22 | $7700.00 | Window Closed / Lapsed |