Patent US2990853A successfully refreshed from Google Patents.
Patent US2430418A successfully refreshed from Google Patents.
US2430418A
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Control mechanism
Assignee: ARENS CONTROLS Inc
•
Filing: 1943-01-23
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Granted: 1947-11-04
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Expires: 1963-01-23
Abstract
No abstract record available.
Inventors
- 👤 Charles A Arens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:09
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/12; G05G5/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18064; Y10T74/20; Y10T74/20396; Y10T74/20468; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |