US2225982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device
Assignee: INTERNAT ENGINEERING CORP
•
Filing: 1939-05-25
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Granted: 1940-12-24
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Expires: 1959-05-25
Abstract
No abstract record available.
Inventors
- 👤 Clark Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:54
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F02; F02P; F02P1/00; F23D; F23D11/00; F23D11/36; F23D11/42; F23D11/46; H; H02; H02P; H02P1/00; H02P1/16; H02P1/42; H02P1/44
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) | 1943-12-24 | 1944-06-24 | 1944-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-24 | 1948-06-24 | 1948-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-24 | 1952-06-24 | 1952-12-24 | $7700.00 | Window Closed / Lapsed |